Surnames of Irish Origin

4,666 surnames found of Irish origin

Killen
The surname Killen is of Irish origin and is derived from the Gaelic name "Ó Cillin," meaning "descendant of Cillín." The personal name Cillín is a diminutive of "ceall," which translates to "churc......
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Killett
The surname Killett is of English origin and is derived from the medieval given name "Kil(l)et", which itself is a diminutive form of the name "Kilian". The name Killett is primarily found in the c......
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Killgo
The surname Killgo is of Irish origin and is derived from the Gaelic name "Mac Giolla Chaoil," meaning "son of the fair-haired youth." The name likely originated as a nickname for someone with fair......
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Killian
The surname Killian is of Irish and German origin. In Irish, it is derived from the Gaelic name "Cillín," meaning "little church" or "churchyard." In German, it is derived from the personal name "K......
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Killiany
The surname Killiany is of Irish origin and is derived from the Gaelic name "Ó Cillínigh," meaning "descendant of Cillínigh." The name Cillínigh is believed to be a diminutive form of "ceallach," w......
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Killilea
The surname Killilea is of Irish origin and is derived from the Gaelic name Mac Giolla Eathain, meaning "son of the servant of Saint John." The name is predominantly found in County Galway, Ireland......
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Killins
The surname Killins is of Scottish origin and is derived from the Gaelic name Mac Gille Fhinnein, meaning "son of the servant of St. Finnan." The name likely originated from a person who was a devo......
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Killion
The surname Killion is of Irish origin and is derived from the Gaelic name Ó Cillin, meaning "descendant of Cillín." The name Cillín is a diminutive form of the Gaelic word "cill," which translates......
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Killips
The surname Killips is of English origin and is derived from the personal name "Kil(l)ip", which is a diminutive form of the medieval given name "Kilian". The name "Kilian" itself is of Irish and G......
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Killoran
The surname Killoran is of Irish origin and is derived from the Gaelic name "Ó Cill Oirain," meaning "descendant of Cill Oirain." The name Cill Oirain itself is believed to be a personal name deriv......
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Surnames of Irish Origin

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