Surnames of Irish Origin

4,666 surnames found of Irish origin

Costine
The surname Costine is of Irish origin and is derived from the Gaelic name Mac Oistin, meaning "son of Austin." The name Austin itself is derived from the Latin name Augustinus, meaning "venerable"......
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Cotter
The surname Cotter is of English and Irish origin. In English, it is derived from the Middle English word "cotter," which referred to a tenant who occupied a cottage or small dwelling on a larger e......
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Couey
The surname Couey is of Irish origin and is derived from the Gaelic name "Mac Aodha," meaning "son of Aodh." Aodh is a given name that translates to "fire" or "fiery." The name Couey signifies a de......
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Cough
The surname Cough is of Irish origin and is derived from the Gaelic word "cath" meaning "battle." It is believed to have originated as a nickname for a warrior or someone with a fierce or combative......
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Coughanour
The surname Coughanour is of Irish origin and is derived from the Gaelic name "Ó Cocháin," meaning "descendant of Cochán." Cochán is a personal name derived from the word "coch," which means "red."......
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Coughenour
The surname Coughenour is of Irish origin and is derived from the Gaelic name "Mac Eochadha," meaning "son of Eochaidh." Eochaidh is an ancient Irish personal name derived from the elements "eo," m......
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Coughlan
The surname Coughlan 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 derived from the Old Irish word "coch......
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Coughlin
The surname Coughlin is of Irish origin and is derived from the Gaelic name "Ó Cochlain," meaning "descendant of Cochlain." The name Cochlain is believed to be a personal name derived from the word......
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Coughran
The surname Coughran is of Irish origin and is derived from the Gaelic name "Ó Cocháin," meaning "descendant of Cochán." The name Cochán itself is believed to be a diminutive form of the Gaelic wor......
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Coulehan
The surname Coulehan is of Irish origin and is derived from the Gaelic name Ó Cúiléacháin, meaning "descendant of Cúileachán." The name Cúileachán is a diminutive form of the Gaelic word "cúil," wh......
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Surnames of Irish Origin

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