Surnames of Irish Origin

4,666 surnames found of Irish origin

Cahoe
The surname Cahoe is of Irish origin and is derived from the Gaelic name "Mac Eachaidh," meaning "son of Eachaidh." Eachaidh is a personal name derived from the word "each," which means "horse." Th......
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Cahoon
The surname Cahoon is of Irish origin and is derived from the Gaelic name "Ó Catháin," meaning "descendant of Cathán." The name Cathán is believed to be derived from the word "cath," meaning "battl......
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Cahoone
The surname Cahoone is of Irish origin and is derived from the Gaelic name "Ó Catháin," meaning "descendant of Cathán." The name Cathán is believed to be derived from the word "cath," meaning "batt......
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Caid
The surname Caid is of Irish origin and is derived from the Gaelic word "cadh," meaning "battle." It is believed to have originated as a nickname for someone who was fierce or warlike. The name Cai......
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Cain
The surname Cain is of Irish origin and is derived from the Gaelic name "Ó Catháin," meaning "descendant of Cathán." The name Cathán is believed to be derived from the word "cath," meaning "battle.......
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Cainion
The surname Cainion is of Irish origin and is derived from the Gaelic name Ó Catháin, meaning "descendant of Cathán." The name Cathán itself is believed to be derived from the word "cath," meaning ......
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Cairy
The surname Cairy is of Irish origin and is derived from the Gaelic name "Ó Ciardha," meaning "descendant of Ciardha." The name Ciardha itself is derived from the word "ciar," which means "dark" or......
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Caise
The surname Caise is of Irish origin and is derived from the Gaelic name "Mac Cathasaigh," meaning "son of Cathasach." The name Cathasach is derived from the word "cathasach," which means "vigilant......
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Calahan
The surname Calahan is of Irish origin and is derived from the Gaelic name Ó Ceallacháin, meaning "descendant of Ceallachán." Ceallachán is a diminutive form of the personal name Ceallach, which tr......
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Calavan
The surname Calavan is of Irish origin and is derived from the Gaelic name Ó Cailebháin, meaning "descendant of Cailebhán." The name Cailebhán is a diminutive form of the personal name Cailean, whi......
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Surnames of Irish Origin

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