Clan Sweaters

  Ahearne, Ahern, Aherne, Hearn, Hearne, Ó hEachtighearna.   Ó hEachtighearna means ‘lord of horses’, and Ahern is the Anglicisation of this Gaelic name. The clan was part of the Dál...

Bairéid, Barrat, Barratt    The Barrett clan is of Anglo-Norman origins. The name is most common in counties Cork, Galway and Mayo. The two distinct concentrations of the name indicate two distinct clans, and this fact is...

Branny, Mac Brennan, O’ Brennan, Ó Braonáin.   There were four septs of the Ó Braonáin clan in the country, located in Kilkenny, Galway, Westmeath and Kerry. There was also a sept of Mac...

Bohilly, Boughill, Boughla, O’ Buhilly, Ó Buachalla.   Ó Buachalla comes form the Gaelic word “buachaill”, meaning ‘boy’ or ‘herdsman’. Originally, the name was to be...

Bourke, De Búrca, De Burgh   De Búrca was originally de Burgo, and is the most common Irish name of Norman origin. The Burke name is most often associated with the province of Connacht where the family was granted large...

Cathal, MacCathail.   Mac Cathail comes from the personal name Cathal. Cahill is one of the oldest recorded surnames in Ireland. There were several different clans of the name, located in Kerry, Galway, Tipperary and Clare. The Galway sept of...

Glanchy, MacClancy, MacFlannchadh.   The name Clancy was originally a MAC name. The C of Clancy was originally the last letter of the prefix Mac. In Irish Clancy is MacFhlannchaidh – Mac meaning son of Flann meaning Reddish. The...

Clark, Cléireach.   Clarke, or Ó Cléirigh in Gaelic, is a very popular surname in Ireland. It is found predominantly in the northern province of Ulster. Its meaning originates in the Gaelic word...

Cullane, O’ Cullane, Ó Coileáin.   The Collins name is common throughout counties Cork and Limerick, and in the province of Munster in general. The name means ‘a young creature’, from the Gaelic...

Conboy, Conomy, Convey, Mac Conomy, Mac Conway, O’ Conway, Ó Connmhaigh.   The Conway clan name, and its variations, have both Irish and Welsh origins. The Welsh bearers of the name originated in the town...

 Casserly, Costelloe, Mac Coistealbh, Mac Costello, Nangle.   The Costello name, and its variations, are of Anglo Norman origins, and have an interesting history. The original name of the clan was deAngulo, or Nangle, and...

Coghlan, Cohalan, MacCochláin, MacCoughlan, O' Cochláin.   The two main septs of the name Coughlan are to be found as MacCoughlan in County Offaly and O’ Coughlan of County Cork. Both names are derived from...

O' Cróinin, Cronin.   The name Cronin is from a diminutive cron meaning ‘swarthy’ or ‘yellow’. The origin of this family name lies in Cork, particularly the West of the County, where place names such as Cooscronin...

O' Crowley, O' Cruadhlaoich.   The sept of O’ Crowley began as an offshoot of the McDermott’s in County Roscommon. Branches settled in Dunmanway in County Cork – and are still much identified with that area. Another small...

This name may be of Gaelic or Norman origin. In Gaelic, Ó Cuillin comes from the word “Cuileann” meaning ‘holly-tree’. The name originated in south-east Leinster, and remains strong there until this day. The Norman name can...

Coningham, Conyngham, Counihan, Cunnigan, Ó Cuinneagáin.   Cuinneagán comes from the Scots’ Gaelic word “Cuinneag” which means ‘milk-pail’, and was brought to Ireland by...