The forename Eillen
- Dublin South: 4
- Cashel: 3
- Dundalk: 3
- Fermoy: 3
- Dublin: 2
- Ballinasloe: 2
- Longford: 1
- Thomastown: 1
- Omagh: 1
- Dublin North: 1
- Baltinglass: 1
- Waterford: 1
- Lurgan: 1
- Rathkeale: 1
- Dromore West: 1
- Castleblayney: 1
- Ballinrobe: 1
- Newtownards: 1
- Mountmellick: 1
- Clogheen: 1
- Belfast: 1
- Youghal: 1
- Kilrush: 1
- Tipperary: 1
- Magherafelt: 1
- Clifden: 1
- Bandon: 1
- Westport: 1