Surnames of Irish Origin

4,666 surnames found of Irish origin

Obryan
The surname O'Bryan is of Irish origin and is derived from the Gaelic name Ó Briain, meaning "descendant of Brian." The name Brian itself comes from the Old Celtic word "brígh," which translates to......
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Obryant
The surname Obryant is of Irish origin and is derived from the Gaelic name Ó Briain, meaning "descendant of Brian." The name Brian itself comes from the Old Celtic word "brígh," which means "streng......
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Obryon
The surname O'Bryon is of Irish origin and is derived from the Gaelic name Ó Briain, meaning "descendant of Brian." The name Brian itself comes from the Old Celtic word "brígh," which means "streng......
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Obyrne
The surname O'Byrne is of Irish origin and is derived from the Gaelic name "Ó Broin," meaning "descendant of Bran." The name Bran is believed to have originated from the word "bran," which translat......
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Ocain
The surname Ocain 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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Ocallaghan
The surname O'Callaghan is of Irish origin and is derived from the Gaelic name Ó Ceallacháin, meaning "descendant of Ceallachán." Ceallachán is a personal name derived from the Gaelic word "ceallac......
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Ocallahan
The surname O'Callahan is of Irish origin and is derived from the Gaelic name Ó Ceallacháin, meaning "descendant of Ceallachán." Ceallachán is a personal name derived from the Gaelic word "ceallach......
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Ocarroll
The surname O'Carroll is of Irish origin and is derived from the Gaelic name Ó Cearbhaill, meaning "descendant of Cearbhall." Cearbhall is an old Irish personal name that is believed to have origin......
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Ocoin
The surname Ocoin is of Irish origin and is derived from the Gaelic name "Ó Cuáin," meaning "descendant of Cuán." The name Cuán itself is believed to be derived from the Gaelic word "cuán," meaning......
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Oconell
The surname Oconell is of Irish origin and is derived from the Gaelic name "Ó Conaill," meaning "descendant of Conall." Conall is an ancient Irish personal name that is believed to have originated ......
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Surnames of Irish Origin

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