Monahan households in mid-nineteenth century Ireland

Householders by county in (1847-64), as on the map

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Surname Dictionary

Monaghan Very numerous: Leath Chuinn (Northern Half). Ir. Ó Monacháin. Dimin. of manach, a monk. A sept of Roscommon with probably another in Oriel (Armagh, Monaghan etc) but no connection with the county, which is Muineachán.
Monahan numerous: all areas, especially Cavan-Monaghan-Louth, Midlands, Galway, Donegal. Ir. Ó Monacháin, as Monaghan.
Ó Manacháin Monaghan: an-líonmhar: Leath Chuinn: Cabhán-Muineachán-Lú go sonrach. Bhí clann amháin lonnaithe i Ros Comáin, cois Sionainne. Is cosúil go raibh ceann eile in Oirghialla. Ón ainm Manchán, díspeagadh ar "manach".


  • Monahan in 1659.
  • Monahan births mapped 1864-1913
  • Monahan 1901 census map
  • Monahan 1911 census map
  • Monahan Roman Catholic baptisms
  • Monahan Roman Catholic marriages NEW!

The surname

Parishes where Monahan and a second surname are found together


Variants in Griffith's
& total households

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Non-Griffith's Variants

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