Browse
Surnames by county
The commonest family names in each of the 32 counties in the 1911 census, with spelling variants combined. Choose a county on the map or from the lists.
Leinster
- Carlow Byrne, Doyle, Murphy
- Dublin Byrne, Kelly, Murphy
- Kildare Kelly, Byrne, Murphy
- Kilkenny Walsh, Brennan, Murphy
- Laois Dunne, Delaney, Phelan
- Longford O'Reilly, Farrell, Kiernan
- Louth Murphy, Byrne, Kelly
- Meath O'Reilly, Smith, Lynch
- Offaly Kelly, Dunne, Egan
- Westmeath Kelly, O'Reilly, Daly
- Wexford Murphy, Doyle, Byrne
- Wicklow Byrne, Doyle, Murphy
Munster
- Clare McMahon, McNamara, O'Brien
- Cork O'Sullivan, Murphy, McCarthy
- Kerry O'Sullivan, O'Connor, O'Shea
- Limerick Ryan, O'Brien, O'Connor
- Tipperary Ryan, O'Brien, O'Dwyer
- Waterford Power, Walsh, O'Brien
Connacht
- Galway Kelly, Walsh, Burke
- Leitrim McGowan, Reynolds, Flynn
- Mayo Walsh, Gallagher, O'Malley
- Roscommon Kelly, Beirne, McDermott
- Sligo Gallagher, Brennan, Walsh
Ulster
- Antrim Smith, Wilson, Johnston
- Armagh Murphy, Hughes, McCann
- Cavan O'Reilly, Smith, Brady
- Donegal Doherty, Gallagher, O'Donnell
- Down Smith, Brown, Thompson
- Fermanagh Maguire, Johnston, McManus
- Londonderry Doherty, McLaughlin, O'Kane
- Monaghan McKenna, Duffy, Connolly
- Tyrone Quinn, O'Neill, Donnelly
