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exist.
| PLACE | COUNTY | CIVIL PARISH | BARONY | REGISTRAR'S DISTRICT | LEWIS |
|---|
| (1st) Hogan's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| (2nd) Hogan's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Abbey Court Row | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Abbey Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Abbey Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Abbey Street, Lower | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Abbey Street, Old | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Abbey Street, Upper | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Abbotsford Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Academy Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Academy Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Academy Street | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Acton town | Armagh | Ballymore | Orior Lower | Not known | Lewis |
| Adelaide Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Adelaide Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Adelaide Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Adelaide Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Adelaide Villas | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Aghagower town | Mayo | Aghagower | Burrishoole | Not known | Lewis |
| Aherns Row | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Albert Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Albert Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Albert Quay | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Albert Row | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Albert Square | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Albert Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Albert Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Albert Street Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Albion Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Albion Place, Botanic Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Alexander Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Alexandra Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Alexandra Road | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Alexandra Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Alfred Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Allen's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Allen's Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Allinet's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Allinett's Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Alma Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Alma Villas | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Alphonsus Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Alpine Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Altona College Road | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Anderson's Quay | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Anderson's Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Andersons Court | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Andeston's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Andevin Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Angel Alley | Dublin city | St. Nicholas Within | Municipal Borough of Dublin | Not known | Lewis |
| Angel Court | Dublin city | St. Michaels | Municipal Borough of Dublin | Not known | Lewis |
| Angel Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Anglesea Fruit Market | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Anglesea Market | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Anglesea Place | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Anglesea Place, Copley Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Anglesea row | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Anglesea Street | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Anglesea Street (part) | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Anglesea Terrace | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Anglesea Villas, Anglesea Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Annaroe | Monaghan | Monaghan | Monaghan | Not known | Lewis |
| Anne Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Anne Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Anne Street North East | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Anne Street, North | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Anne Street, South | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Annmount | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Antrim Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Antrim Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Apsley Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Arbour Hill | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Arch Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Archdeacon's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ardbarra | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Ardee Row | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Ardee Street | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Ardfallen Terrace | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Ardmoulin Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Ardoyne town | Antrim | Shankill | Upper Belfast | Not known | Lewis |
| Ardskeagh Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Arnalee | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Arnon Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Arran Quay | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Arran Quay | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Arran Street, East | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Arran Street, West | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Arran Street, West | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Artaine town | Dublin | Killester | Coolock | Not known | Lewis |
| Arthur Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Arthur Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Arthur Square | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Arthur Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Arthurs Quay | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Artillery Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Artur Street, Upper | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Ascot Terrace | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Asdill's Row | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Ash Island | Longford | Killoe | Granard | Not known | Lewis |
| Ash Street | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Ashbourne Road | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Ashburton | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ashburton Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ashburton or Thornhill Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ashburton Row | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ashgrove Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ashton Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Aston's Quay | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Athlunkard Street | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Atkinson's Alley | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Audley House | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Audley Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Audoen's Arch | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Aughrim Street | Dublin city | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Aughton Terrace | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Augustinian Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Aungier Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Aungier Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Austen's Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Austin's Court | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Ayre's Court | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Bachelor's Quay | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Bachelor's Walk | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Back Abbey | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Back Clare Street | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Back Clare Street (East) | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Back lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Back Queen Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Backwatercourse | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Baggot Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Baggot Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Baggot Market | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Baggot Street, Lower | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Baggot Street, Upper | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Bagnio Slip | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Bailey's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bailey's Row | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Bairn's Coourt | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Baker Place | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Ball Alley Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Ball's Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Ballard's Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Ballinacurra Bowman | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Ballinamought, East | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ballinamought, West | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ballinascarty town | Cork | Kilmaloda | East Carbery (E.D.) | Not known | Lewis |
| Ballingarry Island | Kerry | Ballyheige | Clanmaurice | Not known | Lewis |
| Ballyhooly Road | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ballymacarret | Down | Knockbreda | Castlereagh Upper | Not known | Lewis |
| Ballymacarret town | Down | Knockbreda | Castlereagh Upper | Not known | Lewis |
| Ballymacarrett | Belfast city | Knockbreda | Castlereagh Upper | Not known | Lewis |
| Ballymacthomas | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ballymisert | Down | Holywood | Castlereagh Lower | Not known | Lewis |
| Ballynafoy | Down | Knockbreda | Castlereagh Upper | Not known | Lewis |
| Ballyrushboy | Down | Knockbreda | Castlereagh Upper | Not known | Lewis |
| Balmer's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Balmoral Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bamfield Lane | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Bandon Road | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Bank Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Bank Place | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Bankfarm | Dublin | Glasnevin | Coolock | Not known | Lewis |
| Barker's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Barnet's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Barnwellstown | Meath | Killary | Lower Slane | Not known | Lewis |
| Barrack Hill | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Barrack Lane (part) | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Barrack Lane (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Barrack Lane (part) | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Barrack Square | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Barrack Street | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Barrack Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Barrack Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Barrack View | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Barretts Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Barrington Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Barrington Street, Little | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Barrow Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Barry?s Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Barry's Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Barrys Row | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Basin Lane | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Basin View | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Bass Place | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Bath Palce Falls Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Bayview | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Bayview Avenue | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Bayview Parade | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Beales Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Beales Square | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Beattie's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Beaver Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Beazly Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Bedford Row | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Bedford Row (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Bedford Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Beecham's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Beef Row | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Begley's Alley | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Belfast city | Belfast city | Knockbreda | Castlereagh Upper | Not known | Lewis |
| Belfast city | Belfast city | Shankill | Upper Belfast | Not known | Lewis |
| Belgrave Avenue | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Belgrave Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bell's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Bell's Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Belle Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Bellevue Park | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bellevue Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Belmont Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Belmont Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Belmont Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Beltavern Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Belturbet town | Cavan | Annagh | Lower Loughtee | Not known | Lewis |
| Belvedere Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Belvidere Court | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Belvidere Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Belview | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Bennett Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Bennington Place | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Benson Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Bensons Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Bentley's Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Beresford Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Beresford Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Berkeley Hall | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Berry Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Berryhill Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Bertridges Square | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Berwick's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Binn's Court | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Bird's Quay | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Birds Island | Offaly | Reynagh | Garrycastle | Not known | Lewis |
| Bishop Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Bishop Street | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Bishop's Marsh | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Black Bull Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Black MIller's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Black's Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Blacken's Lane | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Blackhall market | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Blackhall Parade | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Blackhall Place | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Blackhall Row | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Blackhall Street | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Blackhorse Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Blackmore Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Blackpits | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Blackpool Bridge | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Blackrock Road | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Blacks Well Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Blair's Hill | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Blairs Hill Square | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Blakely's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Blarney Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Blarney Street (part of) | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Blarney View | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bleasby Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bleasby's Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Blessington Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Blessington Street | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Bloomfield | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Bloomfield Avenue | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Bloomfield Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Blossomhill | Limerick | Rathkeale | Connello Lower | Not known | Lewis |
| Blue Boys Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Bluehand Court | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Boardman's Lane | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Bogan's Row, Falls Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Boherbuoy | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Bolton Court | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Bolton Place | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Bolton Street | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Bolton Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Bond Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Bond Street | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Bond Street, New | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Bonfield Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Bonham Street | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Bonny's Lane | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Boot Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Bornagh Island | Offaly | Clonmacnoise | Garrycastle | Not known | Lewis |
| Borris Court | Dublin city | St. Michaels | Municipal Borough of Dublin | Not known | Lewis |
| Botanic Cottage | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Botanic Garden | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Botanic Garden | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Botanic Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Botanic Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Botanic View | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Bottlehouse Yard | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Boundary Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Boundary Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Bow Bridge | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Bow Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Bow Lane, North | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Bow Lane, South | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Bow Lane, West | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Bow Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Bowdies Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Bowes Lane | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Bowles Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Bowlinggreen Street | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Bowman Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Boyce's Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Boyd's Islands | Mayo | Aglish | Carra | Not known | Lewis |
| Boyen Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Boyne Lane | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Brabazon Row | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Brabazon Street | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Brackagh | Westmeath | Noughaval | Kilkenny West | Not known | Lewis |
| Brackagh | Westmeath | Carrick | Fartullagh | Not known | Lewis |
| Brackagh | Tyrone | Kilskeery | Omagh East | Not known | Lewis |
| Brackagh Castle | Westmeath | Ardnurcher, or Horseleap | Moycashel | Not known | Lewis |
| Brackagh Slieve Gallion | Derry | Desertmartin | Loughinsholin | Not known | Lewis |
| Brackaghlislea | Derry | Kilcronaghan | Loughinsholin | Not known | Lewis |
| Brackaharagh | Kerry | Kilcrohane | Dunkerron South | Not known | Lewis |
| Brackaville | Tyrone | Donaghenry | Dungannon MIddle | Not known | Lewis |
| Brackbaun | Limerick | Kilbeheny | Coshlea | Not known | Lewis |
| Brackcloonagh | Sligo | Cloonoghil | Corran | Not known | Lewis |
| Brackenagh East Up. | Down | Kilkeel | Mourne | Not known | Lewis |
| Brackenagh West Up. | Down | Kilkeel | Mourne | Not known | Lewis |
| Brackenagh, East | Down | Kilkeel | Mourne | Not known | Lewis |
| Brackenagh, West | Down | Kilkeel | Mourne | Not known | Lewis |
| Brackenhill | Antrim | Ballinderry | Upper Massereene | Not known | Lewis |
| Brackernagh | Wexford | Ballycanew | Gorey | Not known | Lewis |
| Brackery | Galway | Duniry | Leitrim | Not known | Lewis |
| Brackery, North | Galway | Tynagh | Leitrim | Not known | Lewis |
| Brackery, South | Galway | Tynagh | Leitrim | Not known | Lewis |
| Brackhill | Kerry | Kilcolman | Trughanacmy | Not known | Lewis |
| Brackin | Kilkenny | Mayne | Fassadinin | Not known | Lewis |
| Bracklagh | Mayo | Bekan | Costello | Not known | Lewis |
| Bracklagh | Galway | Duniry | Leitrim | Not known | Lewis |
| Bracklagh | Galway | Tuam | Dunmore | Not known | Lewis |
| Bracklagh | Galway | Clonbern | Ballymoe | Not known | Lewis |
| Bracklagh | Cavan | Drung | Tullygarvey | Not known | Lewis |
| Bracklagh | Cavan | Drumlumman | Clanmahon | Not known | Lewis |
| Bracklagh | Mayo | Aghagower | Murrisk | Not known | Lewis |
| Bracklaghboy | Mayo | Bekan | Costello | Not known | Lewis |
| Brackley | Cavan | Templeport | Tullyhaw | Not known | Lewis |
| Bracklin | Westmeath | Killulagh | Delvin | Not known | Lewis |
| Bracklin | Fermanagh | Drumkeeran | Lurg | Not known | Lewis |
| Bracklin | Cavan | Enniskeen | Clankee | Not known | Lewis |
| Bracklin | Cavan | Bailieborough | Clankee | Not known | Lewis |
| Bracklin Big | Offaly | Ballycommon | Lower Philipstown | Not known | Lewis |
| Bracklin, Little | Offaly | Ballycommon | Lower Philipstown | Not known | Lewis |
| Bracklon | Longford | Mostrim | Ardagh | Not known | Lewis |
| Bracklone | Laois | Lea | Portnahinch | Not known | Lewis |
| Brackloney | Cavan | Castlerahan | Castlerahan | Not known | Lewis |
| Brackloon | Galway | Grange | Kilconnell | Not known | Lewis |
| Brackloon | Galway | Killeenavarra | Dunkellin | Not known | Lewis |
| Brackloon | Galway | Clonbern | Ballymoe | Not known | Lewis |
| Brackloon | Galway | Killimordaly | Athenry | Not known | Lewis |
| Brackloon | Roscommon | Kilcorkey | Castlereagh | Not known | Lewis |
| Brackloon | Roscommon | Fuerty | Athlone | Not known | Lewis |
| Brackloon | Roscommon | Ballintober | Castlereagh | Not known | Lewis |
| Brackloon | Mayo | Aghagower | Murrisk | Not known | Lewis |
| Brackloon | Mayo | Shrule | Kilmaine | Not known | Lewis |
| Brackloon | Mayo | Kilconduff | Gallen | Not known | Lewis |
| Brackloon | Kerry | Kilcrohane | Dunkerron South | Not known | Lewis |
| Brackloon | Kerry | Ballynacourty | Corkaguiny | Not known | Lewis |
| Brackloon | Galway | Killallaghtan | Kilconnell | Not known | Lewis |
| Brackloon, East | Mayo | Bekan | Costello | Not known | Lewis |
| Brackloon, North | Mayo | Bekan | Costello | Not known | Lewis |
| Brackloon, South | Mayo | Bekan | Costello | Not known | Lewis |
| Brackloon, West | Mayo | Bekan | Costello | Not known | Lewis |
| Brackloonagh | Mayo | Ardagh | Tirawley | Not known | Lewis |
| Brackloonbeg | Galway | Kiltullagh | Athenry | Not known | Lewis |
| Brackly | Monaghan | Donaghmoyne | Farney | Not known | Lewis |
| Brackly | Armagh | Kilclooney | Fews Lower | Not known | Lewis |
| Bracknagh | Armagh | Eglish | Armagh | Not known | Lewis |
| Bracknahevla | Westmeath | Killare | Rathconrath | Not known | Lewis |
| Bracknamuckley | Antrim | Ahoghill | Lower Toome | Not known | Lewis |
| Brackney | Kildare | Churchtown | Narragh and Reban West | Not known | Lewis |
| Brackney | Antrim | Culfeightrin | Cary | Not known | Lewis |
| Brackvoan | Limerick | Bruff | Coshma | Not known | Lewis |
| Brackwanshagh | Mayo | Kilbelfad | Tirawley | Not known | Lewis |
| Bracky | Tyrone | Termonmaguirk | Omagh East | Not known | Lewis |
| Bracky | Fermanagh | Derryvullan | Tirkennedy | Not known | Lewis |
| Braddocks | Monaghan | Tullycorbet | Monaghan | Not known | Lewis |
| Brade | Cork | Myross | West Carbery (E.D.) | Not known | Lewis |
| Bradock Island | Down | Killinchy | Dufferin | Not known | Lewis |
| Brady's Row | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Bradystown | Meath | Ratoath | Ratoath | Not known | Lewis |
| Brae | Antrim | Skerry | Lower Antrim | Not known | Lewis |
| Braehead | Donegal | Raphoe | Raphoe | Not known | Lewis |
| Braestown | Wexford | Mayglass | Forth | Not known | Lewis |
| Braetown | Antrim | Glenwhirry | Lower Antrim | Not known | Lewis |
| Bragan | Monaghan | Errigal Trough | Trough | Not known | Lewis |
| Brahalish | Cork | Durrus | West Carbery (W.D.) | Not known | Lewis |
| Braithwaite Street | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Brallistown | Kildare | Kildare | Offaly East | Not known | Lewis |
| Brallistown Commons | Kildare | Kildare | Offaly East | Not known | Lewis |
| Brallistown, Little | Kildare | Kildare | Offaly East | Not known | Lewis |
| Bramblestown | Kilkenny | Dungarvan | Gowran | Not known | Lewis |
| Brandondale | Kilkenny | Graiguenamanagh | Gowran | Not known | Lewis |
| Brandonhill | Kilkenny | The Rower | Ida | Not known | Lewis |
| Brandonhill | Kilkenny | Graiguenamanagh | Gowran | Not known | Lewis |
| Brandonwell | Kerry | Ardfert | Clanmaurice | Not known | Lewis |
| Brandra | Laois | Abbeyleix | Cullenagh | Not known | Lewis |
| Brandrum | Monaghan | Kilmore | Monaghan | Not known | Lewis |
| Brandy Lane | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Branganstown | Meath | Galtrim | Lower Deece | Not known | Lewis |
| Branganstown | Kildare | Kilcock | Ikeathy and Oughterany | Not known | Lewis |
| Braniel | Belfast city | Knockbreda | Municipal Borough of Belfast | Not known | Lewis |
| Brankill | Cavan | Killashandra | Tullyhunco | Not known | Lewis |
| Brankill (Flood) | Cavan | Drumlane | Lower Loughtee | Not known | Lewis |
| Brankill (Lanesborough) | Cavan | Drumlane | Lower Loughtee | Not known | Lewis |
| Brannanstown | Meath | Kilcarn | Skreen | Not known | Lewis |
| Brannish | Fermanagh | Galloon | Coole | Not known | Lewis |
| Brannock | Armagh | Ballymore | Orior Lower | Not known | Lewis |
| Brannockstown | Kildare | Gilltown | Naas South | Not known | Lewis |
| Brannockstown | Kildare | Brannockstown | Naas South | Not known | Lewis |
| Brannockstown or Bellfield | Westmeath | Enniscoffey | Fartullagh | Not known | Lewis |
| Branra | Leitrim | Fenagh | Leitrim | Not known | Lewis |
| Bread Row | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Brennans Row | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Brewery Yard | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Brickfield Lane | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Bride Street | Dublin city | St. Patricks | Municipal Borough of Dublin | Not known | Lewis |
| Bride Street | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Bride Street New | Dublin city | Manor Court of St. Sepulchre | Municipal Borough of Dublin | Not known | Lewis |
| Bride's Alley | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Bride's Alley | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Bride's Place | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Bridewell Lane | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Bridewell Lane, New | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Bridewell Lane, Old | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Bridge Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bridge Street | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Bridge Street, Lower | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Bridge Street, Upper | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Bridgefoot Street | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Bridgefoot Street | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Britain Court | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Britain Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Britain Quay | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Britain Street, Great | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Britain Street, Great | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Britain Street, Great | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Britain Street, Little | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Britain Street, Little | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Broad Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Broad Lane (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Broad Lane (part) | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| Broad Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Broad Street | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Broad Street (West) | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Broad Street, East | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Broadstone | Dublin city | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Broadstone | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Brocklesby Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Brood Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Brown Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Brown Street | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Brown Street, North | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Brown Street, South | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Brown's Alley | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Brown's Alley | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Brown's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Brown's Hill | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Brown's Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Brown's Row | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Brown's Square | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Brown's Square | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Browns Lane, Lower | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Browns Lane, Upper | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Brunswick lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Brunswick Place | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Brunswick Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Brunswick Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Brunswick Street, Great | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Brunswick Street, North | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Brunswick Street, North | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Brunswick Villa | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Brush Row | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Bryan's Alley | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Buckingham Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Buckingham Place | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Buckingham Square | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Buckingham Street, Lower | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Buckingham Street, Upper | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Buckley's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bull Alley | Dublin city | St. Patricks | Municipal Borough of Dublin | Not known | Lewis |
| Bull Alley | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Bull Alley | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Bull Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Bullens Alley | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bunker's Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Burges | Tipperary | Whitechurch | Iffa and Offa West | Not known | Lewis |
| Burgess Lane | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Burgh Quay | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Burke's Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Burn's Court | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Burn's Court, off Mill Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Burnt Lane 1st | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Burnt Lane 2nd | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Burrane, Upper | Clare | Killimer | Clonderalaw | Not known | Lewis |
| Burrellspark | Kilkenny | Thomastown | Gowran | Not known | Lewis |
| Burren | Clare | Kilchreest | Clonderalaw | Not known | Lewis |
| Burren | Cavan | Killinagh | Tullyhaw | Not known | Lewis |
| Burrow | Wicklow | Ballynure | Upper Talbotstown | Not known | Lewis |
| Burton Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Bushy Island | Galway | Clonfert | Longford | Not known | Lewis |
| Bushy Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Butcher's Cottages | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Butchersarms | Dublin | St. James | Uppercross | Not known | Lewis |
| Butler's Court | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Buxton Hill | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Byrne's Alley | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Byrne's Hill | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Byrne's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Byrne's Square | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Byrnes' Court | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Cabbage Market | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Cabragh | Dublin | Grangegorman | Coolock | Not known | Lewis |
| Cabragh Lane | Dublin city | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Caddell's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cadslough | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Cahergal | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Caherline | Limerick | Ballybrood | Clanwilliam | Not known | Lewis |
| Cahills Islands | Offaly | Lusmagh | Garrycastle | Not known | Lewis |
| Cahoon' Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Caledonian Place | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Calendar Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Calendar Yard | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| California Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Callownaskeagh | Galway | Cargin | Clare | Not known | Lewis |
| Camac Place | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Cambrideg Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cambridge Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Camden Buildings | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Camden Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Camden market | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Camden Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Camden Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Camden Quay | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Camden Row | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Camden Street, Lower | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Camden Street, Upper | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Camden terrace, Botanic Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Camden Villa | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Camden's Court | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Campbell's Buildings | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Campbell's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Campbell's Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Campbell's Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Campbell's Row | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Campbell's Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Campbells Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Canal Bank | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Canal Street | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Canning Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Canon Street | Dublin city | St. Patricks | Municipal Borough of Dublin | Not known | Lewis |
| Capel Street | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Cardiff's Lane | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Carey's Lane | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Careys Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Careys Road, Lower | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Careys Road, Upper | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Cargill Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Carlisle Court | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Carman Hall | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Carnaross | Meath | Loughan, or Castlekeeran | Upper Kells | Not known | Lewis |
| Carnpark | Westmeath | Ballyloughloe | Clonlonan | Not known | Lewis |
| Carnquill | Monaghan | Tedavnet | Monaghan | Not known | Lewis |
| Carolina Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Caroline Row | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Caroline Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Caroline Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Carr Street (part) | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Carr Street (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Carr's Row, or Dublin Bridge | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Carrick Hill | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Carrig House (Lower Glanmire Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Carrigaloe town | Cork | Clonmel | Barrymore | Not known | Lewis |
| Carrigbeg | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Carrigeen Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Carrigmore | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Carrignaveagh | Cork | St Mary, Shandon | Cork | Not known | Lewis |
| Carrignaveigh | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Carrigside | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Carrol's Quay | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Carrownderry | Roscommon | Kiltoom | Athlone | Not known | Lewis |
| Cashes Lane | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Cassidy's Avenue (off Old Youghal Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cassidys Lane (part) | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Castle Buildings | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Castle Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Castle Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Castle Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Castle Market | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Castle Street | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| Castle Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Castle Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Castleview | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Castleview Avenue | Limerick | St Nicholas | Municipal Borough of Limerick | Not known | Lewis |
| Castleview Gardens | Limerick | St Nicholas | Municipal Borough of Limerick | Not known | Lewis |
| Castleview Terrace (off Lower Glanmire Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cat Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Cathedral Place | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Cathedral Place | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Cathedral Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Catherine Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Catherine Place | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Catherine Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Catherine Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Catherine Street (Lane off) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Catherine Street (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Catherine Street, North | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cattle Lane (part of) | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cattle Lane Place | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cattle Lane Row | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cattle Lane, part of | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cattle Market Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Caxton Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cecil Street Lower (Lane off) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Cecil Street Lower (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Cecil Street Upper (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Centenary Crescent | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Centenary Row (Old Youghal Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Chamberlin's Alley | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Chapel Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Chapel Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Chapel Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Chapel Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Chapel Lane (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Chapel Lane (part) | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Chapel Lane, Old | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Chapel Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Chapel Yard | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Charlemont Mall | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Charlemont Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Charlemont Row | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Charlemont Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Charlemont Street, Lower | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Charlemont Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Charlemont Upper Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Charlemont Villa | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Charles Lane, Great | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Charles Row | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Charles Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Charles Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Charles Street, Great | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Charles Street, West | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Charleville Mall | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Charleville Place (off Old Youghal Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Charleville Row (off Old Youghal Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Charlotte Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Charlotte Quay | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Charlotte Quay | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Charlotte Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Charlotte Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Chatham Lane | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Chatham Row | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Chatham Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Chatterton's Buildings | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Cheater's Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Checkly's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cherry Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Cherrytree Lane | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Chestnut Place | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Chichester Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Chichester Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Chichester Street, Lower | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Chicken Lane | Dublin city | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Christ Church Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Christchurch Place | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Christchurch Place | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Christchurch Place | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Church Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Church Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Church Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Church Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Church Lane S.E. | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Church Lane, South | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Church Lane, Upper | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Church Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Church Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Church Street (part) | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Church Street (part) | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| Church Street New | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Church Street, Old | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Circlle, Ormond Market | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| City Gaol Road | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| City Quay | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| City View | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Clanbrassil Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Clanbrassil Street | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Clanbrassil Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Clancys Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Clanwilliam Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Clare Lane | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Clare Street | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Clare Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Clare Street (back) (part) | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Clare's Row | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Clarence Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Clarence Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Clarence Place, great | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Clarence Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Clarence Street, North | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Clarence Street, South, Great | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Clarence Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Clarendon market | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Clarendon Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Clarendon Row | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Clarendon Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Clarey's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Clark's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Clarke's Bridge | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Clarke's Court | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Clarke's Court | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Clarke's Quay | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Clashnaganniff | Cork | St Anne, Shandon | Cork | Not known | Lewis |
| Clashnagonniff (part) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Clifton Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Clifton Villas (middle Glanmire Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cliftonville, New Lodge Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Clohanes Lane (off Glanmire Road Lower) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Clonakilty town | Cork | Kilgarriff | East Carbery (E.D.) | Not known | Lewis |
| Clonliff, East | Dublin | St. Georges | Coolock | Not known | Lewis |
| Clonliff, South | Dublin | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Clonliff, West | Dublin | St. Georges | Coolock | Not known | Lewis |
| Clonmel | Tipperary | St. Marys, Clonmel | Iffa and Offa East | Not known | Lewis |
| Clonmel Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Clonmult town | Cork | Dungourney | Barrymore | Not known | Lewis |
| Clontarf Sheds town | Dublin | Clontarf | Coolock | Not known | Lewis |
| Clontarf town | Dublin | Clontarf | Coolock | Not known | Lewis |
| Clontarf, East | Dublin | Clontarf | Coolock | Not known | Lewis |
| Clontarf, West | Dublin | Clontarf | Coolock | Not known | Lewis |
| Clooney | Derry | Clondermot | Tirkeeran | Not known | Lewis |
| Clunahill Glebe | Tyrone | Longfield West | Omagh West | Not known | Lewis |
| Clunes Lane | Limerick | St Nicholas | Municipal Borough of Limerick | Not known | Lewis |
| Clyn's Island | Offaly | Reynagh | Garrycastle | Not known | Lewis |
| Coach and Six Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Coach Stree | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Coadys Row | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Coagh | Tyrone | Tamlaght | Dungannon Upper | Not known | Lewis |
| Coaghan | Fermanagh | Killesher | Clanawley | Not known | Lewis |
| Coaghen | Monaghan | Killeevan | Dartree | Not known | Lewis |
| Coal Quay | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Coates Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cobh town | Cork | Clonmel | Barrymore | Not known | Lewis |
| Cobourg Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Coburg Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cockpit Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Coeburns Alley | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Coeburns Lane | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Coghill's Court | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Coghlan's Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Cole Alley | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Cole's Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Coleman's Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Colemans Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Coles Alley | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Coley's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| College Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| College Green | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| College Lane | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| College Place, North | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| College Road | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| College Square | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| College Square, East | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| College Square, North | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| College Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| College Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| College Street, South | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Collingwood Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Collins Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Collins's Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Collinsford | Sligo | Drumcliff | Carbury | Not known | Lewis |
| Colonnade | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Colooney Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Commercial Buildings | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Commercial Buildings | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Commercial Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Commercial Court | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Commons | Cork | St Mary, Shandon | Cork | Not known | Lewis |
| Commons Road | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Commons Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Coney's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Conley' Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Conlon Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Connaught Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Connell Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Connells Court | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Connolly's Court | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Connollys Range | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Connor's Court | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Connor's Row | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Conroy's Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Constitution Hill | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Convent Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Convent Place | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Convent Street | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Conway Sreet | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Conway's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Conways Row | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Conyngham Road | Dublin | St. James | Castleknock | Not known | Lewis |
| Coodys Row | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Cook Street | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Cook Street | Dublin city | St. Michaels | Municipal Borough of Dublin | Not known | Lewis |
| Cook Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Cook Street | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Cook's Lane | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Cook's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cooks Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Cooldaniel | Cork | Kilmichael | West Muskerry | Not known | Lewis |
| Cooldarragh | Monaghan | Drumsnat | Monaghan | Not known | Lewis |
| Coolnagay | Cork | Castleventry | East Carbery (W.D.) | Not known | Lewis |
| Coolnaleen | Wexford | Kilcomb | Scarawalsh | Not known | Lewis |
| Coolnaleen | Kilkenny | Castlecomer | Fassadinin | Not known | Lewis |
| Coolnaleen, Lower | Kerry | Kilshenane | Clanmaurice | Not known | Lewis |
| Coolnaleen, Upper | Kerry | Kilshenane | Clanmaurice | Not known | Lewis |
| Coolnalingady | Waterford | Mothel | Upperthird | Not known | Lewis |
| Cooloola | Galway | Aughrim | Kilconnell | Not known | Lewis |
| Cooloorta | Galway | Abbeyknockmoy | Tiaquin | Not known | Lewis |
| Coolsuppeen | Clare | Kilchreest | Clonderalaw | Not known | Lewis |
| Coolsythe | Antrim | Drummaul | Upper Toome | Not known | Lewis |
| Cooltacker | Roscommon | Kilgefin | Ballintober South | Not known | Lewis |
| Cooltedery | Laois | Lea | Portnahinch | Not known | Lewis |
| Coolteen | Sligo | Ballysadare | Tirerrill | Not known | Lewis |
| Coolteen | Wexford | Kilbrideglynn | Shelmaliere West | Not known | Lewis |
| Cooltona | Roscommon | Kilmeane | Athlone | Not known | Lewis |
| Cooltoran | Laois | Borris | Maryborough East | Not known | Lewis |
| Cooltrain | Fermanagh | Aghalurcher | Magherastephana | Not known | Lewis |
| Cooltrain | Fermanagh | Magheracross | Tirkennedy | Not known | Lewis |
| Coombe, Lower | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Coombe, Lower | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Coombe, Lower | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Coombe, Upper | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Coombe, Upper | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Cope Street | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Copley Place, Copley Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Copley Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Copper Alley | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Copper Alley | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Coppinger's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Coppinger's Row | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Corballis Row | Dublin city | St. Patricks | Municipal Borough of Dublin | Not known | Lewis |
| Corbally | Limerick | St Patrick | Municipal Borough of Limerick | Not known | Lewis |
| Corbally (Townland) | Limerick | St Patrick | Municipal Borough of Limerick | Not known | Lewis |
| Corbett's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Corbetts Square | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Corbins Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Corh Hill | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Cork Bridge | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Cork city | Cork city | St Paul | Cork | Not known | Lewis |
| Cork city | Cork city | St Peter | Cork | Not known | Lewis |
| Cork city | Cork city | Holy Trinity | Cork | Not known | Lewis |
| Cork Hill | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Cork Military Prison | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cork Street | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Corkeran's Quay | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Corn Exchange | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Corn Market | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Corn Market | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Corn Market | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cornmarket Row | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Cornmarket Street | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Cornmarket Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Coronation Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Corporation Square | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Corporation Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Corporation Street, Little | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Corrigan's Court | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Coteenagh Island | Offaly | Clonmacnoise | Garrycastle | Not known | Lewis |
| Cottage Place | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Cottage Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Cotter Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Cotterns Row | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Cotton Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Court House Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Court Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Court Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Courthouse Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Courtney Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Courtneys Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Cove Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Covent Garden | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cow Island | Mayo | Cong | Kilmaine | Not known | Lewis |
| Cow Parlour | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Cowley Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Coyles Square | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Crampton Court | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Crampton Court | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Crampton Quay | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Crane Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Crane Lane | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Crane Street | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Cranmer Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Cranmer Place | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Cranstone Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Crawford Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Creagh Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Creighton Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Cremins' Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Crescent Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Crescent, Lower | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Crescent, Upper | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cribby Island | Galway | Inishcaltra | Leitrim | Not known | Lewis |
| Crispin's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Crofts Alley | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Croker's Cottages | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Cromac Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cromac Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cromwell Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Crones Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Crosbie Row | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Cross Blue boys Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Cross Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Cross Road | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Cross Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Cross's Green | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Crossgun lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Crossguns | Dublin | Glasnevin | Coolock | Not known | Lewis |
| Crossguns North or Daneswell | Dublin | St. Georges | Coolock | Not known | Lewis |
| Crossguns, South | Dublin | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Crostick Alley | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Crotamore Square | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Crow Street | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Crowley Lane | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Crowleys Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Crown Alley | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Crown Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Crumlin Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Crumlin Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Crumlin Terrace | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cuckoo Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Cuddy's Row | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cuffe Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Cuffe Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Culbert's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Culingtree Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cullingtree Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cumberland Lane, North | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Cumberland Lane, South | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Cumberland Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cumberland Road | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Cumberland Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Cumberland Street, North, Lower | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Cumberland Street, North, Upper | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Cumberland Street, South | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Cummins Court | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Cunningham's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Cunninghams Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Curragh Road | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Curragower Avenue | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Currel's Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Currel's Row | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Curry Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Currys Rock | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Curtis Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Curtis Street | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Curtis's Lane | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Cusheen Island | Galway | Kinvarradoorus | Kiltartan | Not known | Lewis |
| Custom House Docks | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Custom House Place | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Custom House Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Cutpurse Row | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Cutpurse Row | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| D'Olier Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Daly's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Dam Side | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Dame Court | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Dame Lane | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Dame Street | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Dame Street | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Daneswell | Dublin | St. Georges | Coolock | Not known | Lewis |
| Daneswell or Cross-guns, North | Dublin | St. Georges | Coolock | Not known | Lewis |
| Daniel Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Dardistown | Westmeath | Killagh | Delvin | Not known | Lewis |
| Darley's Court | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Daunt's Square | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Davidson's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Davis Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Dawson Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Dawson Lane | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Dawson Row | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Dawson Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Dayton Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Dean Street | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Deane Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Deanery-land | Limerick | St Nicholas | Municipal Borough of Limerick | Not known | Lewis |
| Dellabrown | Dublin | Holmpatrick | Balrothery East | Not known | Lewis |
| Delliga | Cork | Kilbolane | Orrery and Kilmore | Not known | Lewis |
| Delligabaun | Laois | Aghaboe | Clarmallagh | Not known | Lewis |
| Dellin | Louth | Darver | Louth | Not known | Lewis |
| Denmark Place | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Denmark Street Lower (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Denmark Street Upper (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Denmark Street, Great | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Denmark Street, Little | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Denroches Cross | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Denzille Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Denzille Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Denzille Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Derby Square | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Derby Square | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Derrinatallan Island | Sligo | Killaraght | Coolavin | Not known | Lewis |
| Desmond Square | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Despard Court | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Devonshire Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Devonshire Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Dicken's Lane | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Digges Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Digges Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Digges Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Dignam's Court | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Dillon's Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Dillons Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Dingle Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Dispensary Lane | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Dixons Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Dock Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Dock Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Dohertys Lane | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Dolly Hays Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Dollymount town | Dublin | Clontarf | Coolock | Not known | Lewis |
| Dolphin's Barn | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Dolphin's Barn Lane | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Dolphins' Barn Terrace | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Dolphinsbarn | Dublin | St. James | Uppercross | Not known | Lewis |
| Dolphinsbarn, North | Dublin | St. James | Uppercross | Not known | Lewis |
| Dominick Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Dominick Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Dominick Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Dominick Street | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Dominick Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Dominick Street, Upper | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Dominick Street, Upper | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Donaldson's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall ass | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Place Buildings | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Quay | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Square, East | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Square, North | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Square, South | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Square, West | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Street Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Donegall Street, Little | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Doninick Street, Lower | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Donnellys Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Donohue's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Donoughmore Alley | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Donovan Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Donovan's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Donovans Alley | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Donovans Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Donovans Row | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Dorans Island | Mayo | Ballinchalla | Kilmaine | Not known | Lewis |
| Dorset Lane | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Dorset Row | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Dorset Street, Lower | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Dorset Street, Upper | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Dorset Street, Upper | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Dougherty's Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Douglas Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Dowds Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Dowker's Lane | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Downes Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Downshire Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Doyle's Court | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Drake's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Draper's Court | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Drawbridge Street | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Drinan Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Drishoge | Dublin | St. Georges | Coolock | Not known | Lewis |
| Drogheda town | Louth | Tullyallen | Drogheda town | Not known | Lewis |
| Drogheda town | Meath | St. Marys | Drogheda town | Not known | Lewis |
| Drudge's Hill | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Drudge's Hill | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Drumadried | Antrim | Ardclinis | Lower Glenarm | Not known | Lewis |
| Drumcliff town | Sligo | Drumcliff | Carbury | Not known | Lewis |
| Drummond's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Drummys Lawn | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Drury Lane | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Dublin city | Dublin | Dublin city parishes | Dublin | Not known | Lewis |
| Dublin city | Dublin city | Dublin city parishes | Dublin | Not known | Lewis |
| Dublin Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Duck Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Duffin's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Duffy's Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Duggans Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Duggans Row | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Duke Lane, Lower | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Duke Lane, Upper | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Duke Row | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Duke Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Dunbar Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Dunmall | Antrim | Ardclinis | Lower Glenarm | Not known | Lewis |
| Dunne Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Durham Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Durham Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Durham Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Durham Street, New | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Dyet's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Dyke Parade | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Earl Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Earl Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Earl Street, North | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Earl Street, South | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Earlsfort Terrace | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Eason's Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Eason's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Easons Avenue | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| East Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| East View Terrace | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Easter Rock Island | Mayo | Cong | Kilmaine | Not known | Lewis |
| Eastmoreland Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Eastville (part) | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Eccles Lane | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Eccles Street | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Echlin Street | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Economy Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Eden Quay | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Edenderry | Antrim | Shankill | Upper Belfast | Not known | Lewis |
| Edenderry town | Antrim | Shankill | Upper Belfast | Not known | Lewis |
| Edge's Court | Dublin city | St. Patricks | Municipal Borough of Dublin | Not known | Lewis |
| Edward Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Edward Street, Great | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Edward Street, Little | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Edward Terrace | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Egerton Villas | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Egg market | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Eglinton street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Elbow Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Elbow Lane, Great | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Elbow Lane, Little | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Eldon's Court | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Elephant Lane | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Eliot's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Eliza Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Eliza Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Eliza Place | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Eliza Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Elizabeth Terrace (part) | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Ellen Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Ellen Street, Upper | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Elliot Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Ellis's Quay | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Elm Park | Dublin | Clontarf | Coolock | Not known | Lewis |
| Elwood's Court | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Ely Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Emly Street | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Emmett Place | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Emmett Place (part) | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Empress Place (Summerhill) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Engine Alley | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Englishtown | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Ennis Road | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Erne Place | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Erne Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Erskine's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Erues Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Essex Bridge | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Essex Gate | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Essex Quay | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Essex Street, East | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Essex Street, East | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Essex Street, West | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Eustace Steet | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Evenus Villa | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Evergreen | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Evergreen Buildings | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Evergreen Road | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Evergreen Street (part) | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Exchange Court | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Exchange Street, Lower | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Exchange Street, Upper | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Exchange Street, Upper | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Exchequer Street | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Exchequer Street | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Factory Lane | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Factory Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fade Street | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Fag Lane | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Fag Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Fair Hill (part of) Westside | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fair Hill, East Side | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fair Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fair Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fairfield | Dublin | St. Georges | Coolock | Not known | Lewis |
| Fairville Street | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Fairy Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Faithful Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Falloon's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Falls Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Falls Court off Durham Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Falls Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Falmacbreed | Antrim | Ardclinis | Lower Glenarm | Not known | Lewis |
| Falukner's Lane | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Farleigh Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Farrancleary | Cork | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Farranshone (more) | Limerick | St Nicholas | Municipal Borough of Limerick | Not known | Lewis |
| Farranshone Beg | Limerick | St Nicholas | Pubblebrien & Municipal Borough of Limerick | Not known | Lewis |
| Farranshone More | Limerick | St Nicholas | Pubblebrien & Municipal Borough of Limerick | Not known | Lewis |
| Farranshone Road | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Farrasseys Alley | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Farrell's Court | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Farrell's Square | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Farrells Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Farrencleary | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Farrington's Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Farron Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Father Quinns Alley | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Father Quinns Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Fattle Alley | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Faucet's Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fearon's Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Feather Bed Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Fegan's Court | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Fennell's Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Ferguson's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fern's Court | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Ferncliffe Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ferral's Arch | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Ferry Hill | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fever Hospital Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fiddown town | Kilkenny | Fiddown | Iverk | Not known | Lewis |
| Field's Court | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| First Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fish Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Fish Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Fish Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Fishamble Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Fishamble Street | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Fishamble Street | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Fisher's Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Fisherwick Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fishery Island | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fishmarket | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Fittion Street | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Fitton Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Fitton Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Fitzgeralds Alley | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Fitzgeralds Cottages | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Fitzgeralds Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Fitzgibbon Street | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Fitzgibbon's Row | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fitzgibbon's Square | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Fitzwilliam Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Market | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Place, North | Dublin city | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Place., South | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Square, east | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Square, North | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Square, South | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Square, West | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fitzwilliam Street, Lower | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Fitzwilliam Street, Upper | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Flag Alley, North | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Flag Alley, South | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Flag Island | Mayo | Ballinchalla | Kilmaine | Not known | Lewis |
| Flag Lane (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Flag Lane (part) | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Flag Lane (part) | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Fleece Alley | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Fleet Dtreet | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fleet Market | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Fleet Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Fleet Street | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Fleming's Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Flood Street | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Flood's Buildings | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Florinda Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Fogarty's Court | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Foley's Row | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Forbes Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Forcades' entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fordam's Alley | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Forkers Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Fort Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Fortuneteller's Lane | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Foster Place | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Fosters Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Foundling Lane | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Fountain Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fountain Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fountain Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fountainville | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fountainville Cottage | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fowl Market | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fownes Street | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Fox's Row | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Frances Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Francis Street | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Francis Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Francis Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Francis street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Francis Street | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Frankfield View (off Old Youghal Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Franklin Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Freagh Island | Clare | Kilfarboy | Ibrickan | Not known | Lewis |
| Frederick Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Frederick Lane, North | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Frederick Lane, South | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Frederick place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Frederick Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Frederick Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Frederick Street (Fredrick) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Frederick Street Little (Fredrick) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Frederick Street, North | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Frederick Street, North | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Frederick Street, South | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| French Church Street | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| French Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Frenches Quay | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Frenchman's Lane | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Friar's Walk | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Friars Avenue or Granbraher Road | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Friars Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Friary Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Friary lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Friendly Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fullers Lane | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Fultin's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Fumbally's Lane | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Furlong's Court | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Gable Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Gaggins Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Gallagher's Court | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Gallagher's Lane (off Old Youghal Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Gallaghers Island | Offaly | Tisaran | Garrycastle | Not known | Lewis |
| Gallanagh | Antrim | Ardclinis | Lower Glenarm | Not known | Lewis |
| Gallows green Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Galway Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Galway Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Galway Walk | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Galway's Alley | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Gambells Yard | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Gamble Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Gaol Lane Row | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Garden Lane, South | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Garden Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Gardiner Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Gardiner Street, Lower | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Gardiner Street, Middle | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Gardiner Street, Upper | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Gardiner's Lane | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Gardiner's Lane, South | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Gardiner's Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Gardiner's Row | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Gardiners Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Garfield Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Garmoyle Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Garnagh Island | Westmeath | Bunown | Kilkenny West | Not known | Lewis |
| Garranekeagh | Limerick | Effin | Coshma | Not known | Lewis |
| Garryowen Road, East | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Garryowen Street | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Garryowen Villas | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Garter Court | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Garveys Long Range | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Garveys Range | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Gasworks Road | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Gate Court | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| George Street (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| George's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| George's Court, North | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| George's Court, South | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| George's Hill | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| George's Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| George's Lane | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| George's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| George's Place, Circular Road | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| George's Place, North | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| George's Place, South | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| George's Quay | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| George's Street, East | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| George's Street, great | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| George's Street, Little | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Georges Quay | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Georges Quay | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Georges Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Georges Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Gerald Griffen Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Gerald Griffin Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Gerald Griffin Street, Lower | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Gerald Griffin Street, Upper | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Geraldine Place | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Geraldine Terrace | Limerick | St Lawrence | Municipal Borough of Limerick | Not known | Lewis |
| Geraldine Villas | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Gibb's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Gibraltar Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Gibralter | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Gill Square | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Gillabbey Lane | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Gillabbey Street | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Gillabbey Terrace | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Gillahaugh Cottages | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Glankittane | Cork | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Glankittane Square | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Glashganniff | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Glasnevin | Dublin | Glasnevin | Coolock | Not known | Lewis |
| Glasnevin Demesne | Dublin | Glasnevin | Coolock | Not known | Lewis |
| Glasnevin Demesne | Dublin | Finglas | Castleknock | Not known | Lewis |
| Glasnevin town | Dublin | Glasnevin | Coolock | Not known | Lewis |
| Glasshouse Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Glassillan Island | Mayo | Kilcommon (Erris) | Erris | Not known | Lewis |
| Glasson's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Glen Ryan Avenue | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Glen View | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Glen View Terrace (Ballybooly Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Glenfield place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Glengall Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Glengall Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Glenthorne Villas | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Glentilt lace | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Glentworth Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Glentworth Street Upper (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Glentworth Street, Little | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Glentworth Street, Lower | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Globe Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Gloster Lane | Limerick | St Nicholas | Municipal Borough of Limerick | Not known | Lewis |
| Gloucester Diamond | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Gloucester Place, Lower | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Gloucester Place, Middle | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Gloucester Place, Upper | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Gloucester Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Gloucester Street North, Upper | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Gloucester Street North., Lower | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Gloucester Street, South | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Gloucester Terrace | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Glover's Alley | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Glovers Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Glue Yard Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Goal Borheen Street | Limerick | St Lawrence | Municipal Borough of Limerick | Not known | Lewis |
| Godsell's Lane | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Goggins Lane | Limerick | St Nicholas | Municipal Borough of Limerick | Not known | Lewis |
| Golden Lane | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Golden Villa | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Goldenbridge town | Dublin | St. James | Uppercross | Not known | Lewis |
| Goldenbridge, North | Dublin | St. James | Uppercross | Not known | Lewis |
| Goldenbridge, South | Dublin | St. James | Uppercross | Not known | Lewis |
| Goodman's Lane | Dublin city | St. Patricks | Municipal Borough of Dublin | Not known | Lewis |
| Goodwin's Lane | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Gooseacre | Dublin | St. Georges | Coolock | Not known | Lewis |
| Gordon Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Gordon Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Gordon's Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Gordons Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Gormans Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Gould Street | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Goulding's Ride | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Gouldings Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Gouldings Terrace | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Goulds Square | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Government House | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Grace Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Grafton Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Grafton Street | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Grafton Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Grafton Street, Little | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Grafton's Alley | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Graham's Court | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Graham's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Graham's Row | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Granby Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Granby Place | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Granby Row, Lower | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Granby Row, Upper | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Grand Canal Place | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Grand Canal Place | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Grand Canal Quay | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Grand Canal Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Grand Canal Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Grand Parade | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Grangegorman Avenue | Dublin city | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Grangegorman Lane | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Grangegorman Lane | Dublin city | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Grangegorman, East | Dublin | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Grangegorman, Middle | Dublin | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Grangegorman, South | Dublin | Grangegorman | Coolock | Not known | Lewis |
| Grangegorman, West | Dublin | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Grant's Row | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Grants Island | Offaly | Reynagh | Garrycastle | Not known | Lewis |
| Grattan Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Grattan Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Grattan Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Grattan Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Grattan Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Grattan Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Grattan Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Gravel Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Great Britain Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Great George's Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Great George's Street, North | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Great George's Street, South | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Great George's Street, South | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Great Georges Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Great Georges Street, West | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Greek Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Green Castle | Antrim | Shankill | Upper Belfast | Not known | Lewis |
| Green Field Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Green Hills town | Dublin | Tallaght | Uppercross | Not known | Lewis |
| Green Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Green Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Green Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Green Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Green's Court or Cooper's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Greenane Islands | Kerry | Templenoe | Dunkerron South | Not known | Lewis |
| Greenland Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Greenlanes | Dublin | Clontarf | Coolock | Not known | Lewis |
| Greenmount | Dublin | St. Georges | Coolock | Not known | Lewis |
| Greenmount | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Greenmount Avenue | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Greenmount Villa | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Gregg's Lane | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Gregg's Lne | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Grenville Lane | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Grenville Place | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Grenville Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Grenville Quay | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Grenville Street | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Grey's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Griffins Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Griffiths Row | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Grove Island | Limerick | St Patrick | Municipal Borough of Limerick | Not known | Lewis |
| Grove street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Guild Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Guilford Terrace | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Gunpowder Lane | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Hacketts Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hacketts Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Haddington Road | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Haddington Terrace | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Hagan's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hagins Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Half Moon Street | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Hallorans Lane | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| Halls Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Halls Range | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Halls Row | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Halpin's Row | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Halpins Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Halston Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Hamill Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hamill Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hamilton Court | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Hamilton Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hamilton Row | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Hamilton Row | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Hamilton Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hamilton's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hamilton's Lane | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Hammond Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Hammond's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hanbury Lane | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Handkerchief Alley | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Hanna'a Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hanna's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hannons Row | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Hanover Lane | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Hanover Place | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Hanover Quay | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Hanover Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Hanover Street, East | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Hanover Street, West | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Hansboro Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Harbour Court | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Harbour View | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Harcourt Place | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Harcourt Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Harcourt Road | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Harcourt Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Harcourt Terrace | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Harding's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hardwick Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hardwicke Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Hardwicke Street | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Harmony Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Haroldscross | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Harper's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Harpur's Lane | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Harpurs Lane | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Harrington Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Harrington's Avenue | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Harrington's Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Harrington's Row | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Harrington's Square | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Harry Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Hart's Row | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Hartstonge Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Hartstonge Street, Upper | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Hasketts Row | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Hastings Lane | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Hastings Row | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Hatch Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Haton's Alley | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hatton's Alley | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Haughtons Island | Offaly | Reynagh | Garrycastle | Not known | Lewis |
| Hawkin's Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Hawkin's Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Hay Market | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Hayfield | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Healy's Court | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Healy's Court | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Hegarty's Square | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hells Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Hendrick Lane | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Hendrick Street | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Henrietta Place | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Henrietta Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Henrietta Street | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Henrietta Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Henrietta's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Henry Square | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Henry Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Henry Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Henry Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Henry Street | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Henry Street (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Henry Street, South | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Herbert place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Herbert Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Hercules Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hercules Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Herdman's Buildings | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Heron's Court | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Heronstown | Dublin | Clontarf | Coolock | Not known | Lewis |
| Heylands Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hibernica Buildings | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| High Road | Limerick | St Nicholas | Municipal Borough of Limerick | Not known | Lewis |
| High Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| High Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| High Street | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| High Street | Dublin city | St. Michaels | Municipal Borough of Dublin | Not known | Lewis |
| High Street (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Hill Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hill Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hill's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hillard's Square | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hillgrove Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hills Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Hillview Cottages (Ballyhooley Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hillview Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hoare's Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Hodder's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Hoey's Court | Dublin city | St. Werburgh | Municipal Borough of Dublin | Not known | Lewis |
| Holles Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Holles Row | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Holles Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Holly Island | Limerick | Tomdeely | Connello Lower | Not known | Lewis |
| Holme's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Holywood town | Down | Holywood | Castlereagh Lower | Not known | Lewis |
| Horgans Buildings | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Hormony Row | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Horseman's Row | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Hospital Lane | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Hospital Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Hotel Yard | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Howard Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Howard Street, South | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Howleys Quay | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Hoyne's Court | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Hudson's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hudson's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hughe's Row | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Hughes's Row | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hughs's Lane | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Hume Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Humphreys Alley | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Hunter's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Hunts Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Hutchinson Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Huttone's Lane | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Illaunanarroor | Galway | Kilcolgan | Dunkellin | Not known | Lewis |
| Illaunaneel, West | Galway | Annaghdown | Clare | Not known | Lewis |
| Improvement Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Inchbeg Island | Sligo | Killaraght | Coolavin | Not known | Lewis |
| Inchicore, North | Dublin | St. James | Uppercross | Not known | Lewis |
| Inchicore, South | Dublin | St. James | Uppercross | Not known | Lewis |
| Industry Place | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Industry Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Infirmary Road | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Ingram place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Institution Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Irishtown | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Irwin Street | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Island in Broad Lough | Wicklow | Rathnew | Newcastle | Not known | Lewis |
| Island Morris | Mayo | Cong | Kilmaine | Not known | Lewis |
| Island Sack | Kerry | Ballyconry | Iraghticonnor | Not known | Lewis |
| Island Sack, Little | Kerry | Lisselton | Iraghticonnor | Not known | Lewis |
| Island Street | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Islandbridge town | Dublin | St. James | Uppercross | Not known | Lewis |
| Islands The | Tipperary | Carrick | Iffa and Offa East | Not known | Lewis |
| Ivy Cottages | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Jackson's Alley | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Jackson's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Jacobson's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| James Square | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| James Street (part) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| James Street (part) | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| James's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| James's gate | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| James's Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| James's Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| James's Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| James's Street | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| James's Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| James's Street, East | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| James's Street, South | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Janesboro Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Janesmount Upper Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Jeffrie's Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Jervis Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Jervis Street | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Jews Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| John Gate | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| John Gillins | Antrim | Ardclinis | Lower Glenarm | Not known | Lewis |
| John Street | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| John Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| John Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| John Street, North | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| John Street, South | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| John Street, West | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| John's Lane, East | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| John's Lane, West | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Johnny's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Johnson's Court | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Johnson's Court, East | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Johnson's Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Johnson's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Johnson's Lane | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Johnson's Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Johnson's Place | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Johnsons Court | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Johnston's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Jones Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Jones's Court | Dublin city | St. Michaels | Municipal Borough of Dublin | Not known | Lewis |
| Jospeh's Lane | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Josses Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Joy Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Joy's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Joy's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Joy's Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Joyces Court | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Kane's Alley | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Kane's Court, East | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Kane's Court, West | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Kate Villas (Ballyhooley Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Keaghery Island | Galway | Beagh | Kiltartan | Not known | Lewis |
| Kearney's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Keating's Lane or Model Cottages | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Keatings Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Keefe Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Keeffes Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Keeling's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Kelly's Court | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Kelly's Court, North | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Kelly's Court, South | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Kelly's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Kelly's Row | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Kennedy Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Kennedy's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Kennedy's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Kennedy's Lane | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Kennedy's Row | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Kent Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Keohane's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Kerrwicks Row | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Kerry Hall Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Kerry Hall Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Kerry Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Kerry Row | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Kerry Yard | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ketlings Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Kevin Street, Cross | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Kevin Street, Lower | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Kevin Street, Upper | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Kevin Street, Upper | Dublin city | St. Patricks | Municipal Borough of Dublin | Not known | Lewis |
| Keysers Hill | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Kidney's Alley | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Kifts Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Kildare Place | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Kildare Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Kilgarvan | Wexford | Kilgarvan | Shelmaliere West | Not known | Lewis |
| Kilkenny city | Kilkenny | St. Marys | Kilkenny City | Not known | Lewis |
| Kilkenny city | Kilkenny | St. Patricks | Kilkenny City | Not known | Lewis |
| Kilkenny city | Kilkenny | St. Canice | Kilkenny City | Not known | Lewis |
| Killalee | Limerick | St John | Clanwilliam and Municipal Borough of Limerick | Not known | Lewis |
| Killeely (Townland) | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Killeeshal | Waterford | Whitechurch | Decies within Drum | Not known | Lewis |
| Killester, South | Dublin | Clontarf | Coolock | Not known | Lewis |
| Killough, Upper | Wicklow | Kilmacanoge | Rathdown | Not known | Lewis |
| Killower | Galway | Killower | Clare | Not known | Lewis |
| Killowney Big | Tipperary | Ballymackey | Upper Ormond | Not known | Lewis |
| Killowney, Little | Tipperary | Ballymackey | Upper Ormond | Not known | Lewis |
| Killy More | Fermanagh | Inishmacsaint | Magheraboy | Not known | Lewis |
| Killyclooney | Tyrone | Donaghedy | Strabane Lower | Not known | Lewis |
| Killyclowny | Fermanagh | Galloon | Coole | Not known | Lewis |
| Killygorman | Cavan | Kildallan | Tullyhunco | Not known | Lewis |
| Killymoon Demesne | Tyrone | Derryloran | Dungannon Upper | Not known | Lewis |
| Killynaul | Tyrone | Carnteel | Dungannon Lower | Not known | Lewis |
| Killywilly | Cavan | Drumlane | Lower Loughtee | Not known | Lewis |
| Kilmacuddy | Tipperary | Killea | Ikerrin | Not known | Lewis |
| Kilmainham | Dublin | St. James | Uppercross | Not known | Lewis |
| Kilmainham town | Dublin | St. James | Uppercross | Not known | Lewis |
| Kilmalogue | Offaly | Clonyhurk | Upper Phillipstown | Not known | Lewis |
| Kilmashogue | Dublin | Whitechurch | Rathdown | Not known | Lewis |
| Kilmichael, Upper | Wexford | Kilnahue | Gorey | Not known | Lewis |
| Kilmilan | Laois | Rathdowney | Clandonagh | Not known | Lewis |
| Kilmore | Donegal | Gartan | Kilmacrenan | Not known | Lewis |
| Kilmore | Cork | Dromdaleague | West Carbery (E.D.) | Not known | Lewis |
| Kilmoyle | Antrim | Drumtullagh, Grange of | Cary | Not known | Lewis |
| Kilmoyle | Longford | Killoe | Longford | Not known | Lewis |
| Kilmoyle, Lower | Antrim | Ballymoney | Upper Dunluce | Not known | Lewis |
| Kilnafrehan, Middle | Waterford | Kilgobnet | Decies within Drum | Not known | Lewis |
| Kilnoe | Clare | Kilnoe | Tulla Upper | Not known | Lewis |
| Kilrush | Limerick | St Munchin | Pubblebrien & Municipal Borough of Limerick | Not known | Lewis |
| Kilrush Little (Townland) | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| Kimberley Villas (off Military Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| King Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| King Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| King Street Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| King Street, North | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| King Street, North | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| King Street, North | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| King Street, North | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| King Street, South | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| King's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| King's Inns Quay | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| King's Inns Street | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| King's Island | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| King's Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Kings Island | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| Kings Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Kings Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Kingshead Court | Dublin city | St. Andrews | Municipal Borough of Dublin | Not known | Lewis |
| Kingston | Wicklow | Castlemacadam | Arklow | Not known | Lewis |
| Kingston Avenue | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Kinkeel Island | Donegal | Kilbarron | Tirhugh | Not known | Lewis |
| Knapp's Square | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Knock | Down | Knockbreda | Castlereagh Lower | Not known | Lewis |
| Knockanboy | Longford | Ballymacormick | Ardagh | Not known | Lewis |
| Knockatinty | Clare | Clonlea | Tulla Lower | Not known | Lewis |
| Knockatippaun | Kildare | Brannockstown | Naas South | Not known | Lewis |
| Knockatober | Wexford | Killann | Bantry | Not known | Lewis |
| Knockatoor | Waterford | Ardmore | Decies within Drum | Not known | Lewis |
| Knockcahill | Cork | Dromtarriff | Duhallow | Not known | Lewis |
| Knockeen | Wicklow | Liscolman | Shillelagh | Not known | Lewis |
| Knockeennagroagh | Cork | Gortroe | Barrymore | Not known | Lewis |
| Knockeennahone | Kerry | Ballincuslane | Trughanacmy | Not known | Lewis |
| Knockeennalicka | Kerry | Kilcummin | Magunihy | Not known | Lewis |
| Knocknabohilly (part of) | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Knocknakeeny (part of) | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Knocknamuck, Lower | Wicklow | Ballynure | Upper Talbotstown | Not known | Lewis |
| Knockraheen | Wicklow | Calary | Newcastle | Not known | Lewis |
| Knockreer | Kerry | Aghadoe | Magunihy | Not known | Lewis |
| Kyle Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Kyrls Quay | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Kyrls Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lacy's lane | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Lad Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Lady Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Lady's Well Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Ladyswell Place | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lag Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Lagan Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lahagh | Tipperary | Templeree | Ikerrin | Not known | Lewis |
| Lamb Alley | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Lamb's Court | Dublin city | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Lamb's Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Lancaster Quay | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Lancaster Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Landsdown Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Langford Place | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Langford Row | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Langford Terrace | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Langford's Buildings | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Langrishe Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Lanmore | Mayo | Aghagower | Murrisk | Not known | Lewis |
| Lapp's Island | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Lapp's Quay | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Laragh Beg | Galway | Abbeyknockmoy | Clare | Not known | Lewis |
| Laurel Hill Avenue | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Laverty's Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Lavitts Quay | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Law Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Law's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Leabeg | Roscommon | Drumatemple | Ballymoe | Not known | Lewis |
| LeadbeaterPlace | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lecarrowcloghagh | Mayo | Crossmolina | Tirawley | Not known | Lewis |
| Lee's Court | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Lee's Lane | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Leeds Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lees Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Leeson Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Leeson Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Leeson Street, Lower | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Leeson Street, Upper | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Legg's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Legoneil | Antrim | Shankill | Upper Belfast | Not known | Lewis |
| Lehery | Longford | Rathcline | Rathcline | Not known | Lewis |
| Leinster Market | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Leinster Row | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Leinster Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Leinster Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Leitrim | Wicklow | Donaghmore | Upper Talbotstown | Not known | Lewis |
| Leitrim Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lennon'sLane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lennox Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Lennox Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Letitia Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lettuce Hill | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lewis's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Liberty Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Liberty Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Liddy's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Liffey Street, Lower | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Liffey Street, Upper | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Liffey Street, West | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Liffeybank | Dublin | St. James | Municipal Borough of Dublin | Not known | Lewis |
| Lilliput | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lime Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Limerick Alley | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Limerick City | Limerick city | St Patrick | Municipal Borough of Limerick | Not known | Lewis |
| Limerick City | Limerick city | St John | Municipal Borough of Limerick | Not known | Lewis |
| Limerick City | Limerick city | St Nicholas | Municipal Borough of Limerick | Not known | Lewis |
| Limerick City | Limerick city | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| Limerick City | Limerick city | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Limerick City | Limerick city | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Limerick City | Limerick city | St Lawrence | Municipal Borough of Limerick | Not known | Lewis |
| Limerick Port | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Lincoln Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Lincoln Place (Grattan Hill) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lindsay's Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Linenhall Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Linenhall Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Linfield Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lisadian | Armagh | Loughgilly | Orior Upper | Not known | Lewis |
| Lisavaddy | Donegal | Killaghtee | Banagh | Not known | Lewis |
| Lisavague | Armagh | Kilmore | Orior Lower | Not known | Lewis |
| Lisavargy | Monaghan | Errigal Trough | Trough | Not known | Lewis |
| Lisawaum | Cavan | Drumgoon | Tullygarvey | Not known | Lewis |
| Lisbealad, West | Cork | Drinagh | East Carbery (W.D.) | Not known | Lewis |
| Lisburn Road | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lisburn Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Lisburn Street, New | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Lisdillon | Derry | Clondermot | Tirkeeran | Not known | Lewis |
| Lisdillure | Roscommon | Drum | Athlone | Not known | Lewis |
| Lisdivin, Lower | Tyrone | Donaghedy | Strabane Lower | Not known | Lewis |
| Lisdivin, Upper | Tyrone | Donaghedy | Strabane Lower | Not known | Lewis |
| Lisdivrick | Fermanagh | Killesher | Clanawley | Not known | Lewis |
| Lisglenbeha | Tipperary | Corbally | Ikerrin | Not known | Lewis |
| Lisleaghmountain | Waterford | Lickoran | Decies without Drum | Not known | Lewis |
| Lisnabo | Meath | Enniskeen | Lower Kells | Not known | Lewis |
| Lisnabraugh | Antrim | Derrykeighan | Lower Dunluce | Not known | Lewis |
| Lisnanees, Upper | Donegal | Aghanunshin | Kilmacrenan | Not known | Lewis |
| Liss | Tipperary | Glenkeen | Kilnamanagh Upper | Not known | Lewis |
| Listowel Lane | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Little Anne Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Little Creagh Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Little Cross Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Little Dominick Street | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| Little Fish Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Little Hanover Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Little Market Street | Cork city | St Paul | Municipal Borough of Cork | Not known | Lewis |
| Little William Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Litton Court | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Litton Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Lloyds Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lobinish | Galway | Killannin | Moycullen | Not known | Lewis |
| Lock Quay | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Loftus Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Lombard Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Londonderry town | Derry | Clondermot | Tirkeeran | Not known | Lewis |
| Long Avenue | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Long Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Long Lane | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Long Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Long's Palce, G.C. harbour | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Longford Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Longford Street, Great | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Longford Street, Little | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Longmeadows | Dublin | St. James | Castleknock | Not known | Lewis |
| Looney Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lord Fitzgerald's Island | Galway | Oranmore | Dunkellin | Not known | Lewis |
| Lots | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Lough Lane | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Lough Road | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Lough View Terrace | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Lough Villas | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Loughan | Antrim | Ardclinis | Lower Glenarm | Not known | Lewis |
| Loughaun Island | Galway | Kilcolgan | Dunkellin | Not known | Lewis |
| Loughlins Lane | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Loughlinstown | Dublin | Killiney | Rathdown | Not known | Lewis |
| Loughlinstown Commons | Dublin | Killiney | Rathdown | Not known | Lewis |
| Lourigans Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Love Lane | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| Love Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Love Lane, South | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Lovers Walk or (Tivoli Road) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lovescharity | Dublin | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Low Wood | Antrim | Shankill | Upper Belfast | Not known | Lewis |
| Lower George's Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Lower Glanmire Road | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lower Grattan Hill | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lower Janemount | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lower John Street (part) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lower Mayfield | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lower Quarry Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Lowry's Court | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Luke Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Lundy's Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Lundy's Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Lurgan Street | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Luscombe's Court | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Lylo | Armagh | Seagoe | Oneilland East | Not known | Lewis |
| Lynas's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Lynch's Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Mabbot Lane | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Mabbot Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Macoghlans Island | Offaly | Reynagh | Garrycastle | Not known | Lewis |
| Madden's Buildings | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Maddens Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Magazine Road | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Magdala Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Magee's Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Magee's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Magnolia Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Maguinness Place | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Maher's Court, North | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Maher's Court, South | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Mahoney's Square | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mahony's Avenue | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mahony's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mahony's lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Mahonys Place | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Maiden's Court | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Main Street, North | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Main Street, South | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Malacky's Lane | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Mall, North | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mall, South | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Mallow Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mallow Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mallow Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Mallow Street Lower pt | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Mallow Street, Upper | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Malone Road, Lower | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Malone, Lower | Antrim | Shankill | Upper Belfast | Not known | Lewis |
| Malpas Street | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Mangan Court | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Mannions Island Small | Cork | Durrus | West Carbery (W.D.) | Not known | Lewis |
| Mannix Street | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mannix's Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Manor Place | Dublin city | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Manor Street | Dublin city | Grangegorman | Municipal Borough of Dublin | Not known | Lewis |
| Mansfield Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Mansion House Lane | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Manypenny Yard | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Mardyke | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Mardyke Place | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Mardyke Street | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Margaret Lane | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Margaret Place | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| Margaret Place | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Margaret Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Margaret Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Marina View | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Marina Villas | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Mark Street | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Mark's Alley, East | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Mark's Alley, West | Dublin city | St. Nicholas Without | Municipal Borough of Dublin | Not known | Lewis |
| Mark's Court | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Mark's Lane | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Mark's Place | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Market Alley | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Market Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Market Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Market Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Market Street | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Markey's Court | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Marlboro House | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Marlborough | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Marlborough Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Marlborough Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Marlborough Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Marquis Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Marrowbone Lane | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Marshall Alley | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Marshall Lane | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Marshall's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Mary Street | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mary Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Mary Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Mary Street (part) | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Mary Street, Great | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Mary Street, Little | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Mary's Abbey | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Mary's Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Mary's Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mary's Market | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Mary's Place | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Maryville Cottages | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Maryville, Copley Street | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Mason's Court | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Mason's Market | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Mass Lane | Limerick | St Munchin | Municipal Borough of Limerick | Not known | Lewis |
| May Lane | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| May Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| May Street, Little | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Maylor Street | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Maymount | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Mayor Street, East | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Mayor Street, West | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Maypoole Road | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| McAdam's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McAllen's Place | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McAuley's Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McCabe's Court | Dublin city | St. Georges | Municipal Borough of Dublin | Not known | Lewis |
| McClean's Lane | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| McClelland's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McCormick's Court | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| McCoubrey's Entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McCullagh's Alley | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| McDonald's Court | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| McDougald's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McKenzie's Row | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McKibbin's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McMaster's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McMaster's Court, Millfield | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McNamara Place | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| McTear's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| McTear's Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Meade Row, Ormond Market | Dublin city | St. Michans | Municipal Borough of Dublin | Not known | Lewis |
| Meadow Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Meat Market Lane | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Meat Market Lane | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Meath Market | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Meath Street | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Mecklenburgh Lane | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Mecklenburgh Street, Lower | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Mecklenburgh Street, Upper | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Meelaherragh | Cork | Clonfert | Duhallow | Not known | Lewis |
| Meeting-house Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Meetinghouse Lane, North | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Meetinghouse Lane, South | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Melbourne Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Melville Terrace | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mercer Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Merchant's Quay | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Merchant's Quay | Cork city | Holy Trinity | Municipal Borough of Cork | Not known | Lewis |
| Merchant's Quay | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Merchant's Quay | Dublin city | St. Michaels | Municipal Borough of Dublin | Not known | Lewis |
| Merchants Quay | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Meredyth Place | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Lane | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Market | Dublin city | St. Marks | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Row | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Row | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Square, East | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Square, North | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Square, South | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Square, West | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Street, Lower | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Street, Lower | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Street, Upper | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Merrion Street, Upper | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Merrypole Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mespil | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Mespil Parade | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Mespil Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Michael Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Michael's Hill | Dublin city | St. Michaels | Municipal Borough of Dublin | Not known | Lewis |
| Michael's Hill | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Michael's Lane | Dublin city | St. Michaels | Municipal Borough of Dublin | Not known | Lewis |
| Michaels Lane | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Michaels Lane (part of Custom House) | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Michaels Street | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Middle Glanmire Road | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Middle Island | Galway | Killannin | Moycullen | Not known | Lewis |
| Middle Quarry Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Middleton Court | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Military Barracks | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Military Hospital | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Military Prison - Warders Quarters etc. | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Military Road | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Military Road | Limerick | St Michael | Municipal Borough of Limerick | Not known | Lewis |
| Military Road (part of) | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Milk Market Lane | Cork city | St Mary, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Mill Lane | Limerick | Killeely | Municipal Borough of Limerick | Not known | Lewis |
| Mill Lane | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Mill Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Mill Street | Dublin city | St. Lukes | Municipal Borough of Dublin | Not known | Lewis |
| Mill Tenement | Antrim | Ardclinis | Lower Glenarm | Not known | Lewis |
| Millar's Lane | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Miller Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Millerd Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Millfield | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Minerva Terrace | Cork city | St Finbar | Municipal Borough of Cork | Not known | Lewis |
| Minor's Alley | Dublin city | St. Audoens | Municipal Borough of Dublin | Not known | Lewis |
| Mitchell's entry | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Mitchell's Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Mitre Alley | Dublin city | St. Patricks | Municipal Borough of Dublin | Not known | Lewis |
| Mockenstown | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Moira Coourt | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Moira Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Molesworth Court | Dublin city | St. Johns | Municipal Borough of Dublin | Not known | Lewis |
| Molesworth Place | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Molesworth Street | Dublin city | St. Annes | Municipal Borough of Dublin | Not known | Lewis |
| Molyneux Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Molyneux Yard | Dublin city | St. Catherines | Municipal Borough of Dublin | Not known | Lewis |
| Monamuck | Limerick | St John | Clanwilliam and Municipal Borough of Limerick | Not known | Lewis |
| Money, Lower | Wicklow | Aghowle | Shillelagh | Not known | Lewis |
| Monk School Lane | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Monk's Court | Dublin city | St. Brides | Municipal Borough of Dublin | Not known | Lewis |
| Monrea Terrace | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Montague Court | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Montague Place | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Montague Street | Dublin city | St. Peters | Municipal Borough of Dublin | Not known | Lewis |
| Montenotte | Cork city | St Anne, Shandon | Municipal Borough of Cork | Not known | Lewis |
| Montenotte View | Cork city | St Nicholas | Municipal Borough of Cork | Not known | Lewis |
| Montgomery Street | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Montgomery Street | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Montgomery's Market | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Montpelier Hill | Dublin city | St. Pauls | Municipal Borough of Dublin | Not known | Lewis |
| Moore Lane | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Moore Lane | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Moore Row | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Moore Street | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Moore Street | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Moore Street Court | Cork city | St Peter | Municipal Borough of Cork | Not known | Lewis |
| Moore Street Market | Dublin city | St. Mary | Municipal Borough of Dublin | Not known | Lewis |
| Moore's Cottages | Dublin city | St. Thomas | Municipal Borough of Dublin | Not known | Lewis |
| Moores Alley | Limerick | St Mary | Municipal Borough of Limerick | Not known | Lewis |
| Moores Lane | Limerick | St John | Municipal Borough of Limerick | Not known | Lewis |
| Moreland's Court | Belfast city | Shankill | Municipal Borough of Belfast | Not known | Lewis |
| Morgan Court | Dublin city | St. Johns |