Surnames of Irish Origin

4,666 surnames found of Irish origin

Cogan
The surname Cogan is of Irish origin and is derived from the Gaelic word "MacCogadhain," meaning "son of Cogadhain." The name Cogan is primarily found in County Cork, Ireland. It is believed to hav......
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Cogar
The surname Cogar is of Irish origin and is derived from the Gaelic name "MacCogadhain," meaning "son of Cogadhain." The name Cogadhain itself is believed to be derived from the word "cogadh," mean......
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Cogen
The surname Cogen is of Irish origin and is derived from the Gaelic name "Ó Cógáin," meaning "descendant of Cógán." The name Cógán is believed to be derived from the Gaelic word "cóg," which means ......
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Coghlan
The surname Coghlan is of Irish origin and is derived from the Gaelic name "Mac Cochlain," meaning "son of Cochlan." The name Cochlan itself is believed to be a variant of the Gaelic word "cochall,......
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Coghlin
The surname Coghlin is of Irish origin and is derived from the Gaelic name "Mac Cochlain," meaning "son of Cochlain." The name Cochlain is believed to be a variant of the name Cochlán, which transl......
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Cogley
The surname Cogley is of Irish origin and is derived from the Gaelic name "Mac Giolla Chomhgaill," meaning "son of the servant of St. Comhghall." The name is associated with County Armagh in Northe......
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Cohagan
The surname Cohagan is of Irish origin and is derived from the Gaelic name "Ó Cúchagáin," meaning "descendant of Cúchagán." The name Cúchagán is a diminutive form of the personal name Cúchulainn, w......
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Cohan
The surname Cohan is of Irish origin and is derived from the Gaelic name "Ó Comhain," meaning "descendant of Comhain." The name Comhain itself is believed to have originated from the word "comh," m......
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Cohane
The surname Cohane is of Irish origin and is derived from the Gaelic name "Ó Cadhain," meaning "descendant of Cadhan." The name Cadhan itself is believed to come from the word "cadh," meaning "batt......
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Cohea
The surname Cohea is of Irish origin and is derived from the Gaelic name "Ó Comhaidh," meaning "descendant of Comhaidh." The name Comhaidh is believed to have originated from the word "comhaidh," w......
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Surnames of Irish Origin

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