Surnames of Irish Origin

4,666 surnames found of Irish origin

Coogan
The surname Coogan is of Irish origin and is derived from the Gaelic name "MacCogadhain," meaning "son of Cogadhain." The name Cogadhain is believed to be derived from the word "cogadh," which mean......
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Coolahan
The surname Coolahan is of Irish origin and is derived from the Gaelic name Ó Cúlacháin, which means "descendant of Cúlachán." The name Cúlachán is believed to be a diminutive form of the Gaelic wo......
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Cooley
The surname Cooley is of Irish origin and is derived from the Gaelic name Ó Cuilleannáin, meaning "descendant of Cuilleannán." The name Cuilleannán is a diminutive form of the Gaelic word "cuileann......
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Coolican
The surname Coolican is of Irish origin and is derived from the Gaelic name Ó Cúilghinn, which means "descendant of Cúilghinn." The name Cúilghinn itself is believed to be a personal name derived f......
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Coolong
The surname Coolong is of Irish origin and is derived from the Gaelic name Ó Cúláin, meaning "descendant of Cúláin." The name Cúláin is believed to be derived from the word "cúl," meaning "back" or......
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Coomey
The surname Coomey is of Irish origin and is derived from the Gaelic name "Ó Comhaidh," meaning "descendant of Comhaidh." The name itself is believed to have originated from the word "comhaidh," wh......
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Coonan
The surname Coonan is of Irish origin and is derived from the Gaelic name Ó Cuanaigh, meaning "descendant of Cuanaigh." The name Cuanaigh is believed to be derived from the word "cuán," which means......
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Coone
The surname Coone is of Irish origin and is derived from the Gaelic name "Mac Cuinn," meaning "son of Conn." The name Conn itself is derived from the Gaelic word "cenn," meaning "head" or "chief." ......
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Cooner
The surname Cooner is of Irish origin and is derived from the Gaelic word "cuinneir," meaning "a cooper" or "barrel maker." It is an occupational surname that was given to individuals who were invo......
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Cooney
The surname Cooney is of Irish origin and is derived from the Gaelic name "Ó Cuana," meaning "descendant of Cuana." The name Cuana itself is believed to be derived from the word "cuan," meaning "ha......
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Surnames of Irish Origin

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