Surnames of Irish Origin

4,666 surnames found of Irish origin

Gilday
The surname Gilday is of Irish origin and is derived from the Gaelic name Mac Giolla Dé, meaning "son of the servant of God." It is a patronymic surname, indicating that it was originally used to i......
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Gildea
The surname Gildea is of Irish origin and is derived from the Gaelic name Mac Giolla Dé, meaning "son of the servant of God." It is a patronymic surname, indicating descent from a male ancestor who......
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Gilfeather
The surname Gilfeather is of Scottish origin and is derived from the Gaelic name "Mac Gille Fhaolain," meaning "son of the servant of St. Fillan." St. Fillan was a 7th-century Irish saint who was k......
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Gilfilen
The surname Gilfilen is of Scottish origin and is derived from the Gaelic name "Mac Gille Fhaolain," meaning "son of the servant of St. Fillan." St. Fillan was a 7th-century Irish saint who was kno......
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Gilfoil
The surname Gilfoil is of Irish origin and is derived from the Gaelic name "Mac Giolla Phóil," meaning "son of the servant of St. Paul." The name suggests an ancestral connection to someone who was......
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Gilfoy
The surname Gilfoy is of Irish origin and is derived from the Gaelic name Mac Giolla Phóil, meaning "son of the servant of St. Paul." It is a patronymic surname, indicating descent from an ancestor......
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Gilgallon
The surname Gilgallon is of Irish origin and is derived from the Gaelic name Mac Giolla Ghallchobhair, meaning "son of the servant of St. Gallchobhair." The name Gallchobhair is a combination of th......
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Gilgan
The surname Gilgan is of Irish origin and is derived from the Gaelic name "Mac Giolla Gáin," meaning "son of the servant of St. Gáin." The name Gáin is believed to be a personal name derived from t......
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Gilhool
The surname Gilhool is of Irish origin and is derived from the Gaelic name Mac Giolla Choille, meaning "son of the servant of the woods." It is believed to have originated in County Donegal, Irelan......
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Gilhooley
The surname Gilhooley is of Irish origin and is derived from the Gaelic name Mac Giolla Thúile, meaning "son of the servant of the will." It is a patronymic surname, indicating that it was original......
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Surnames of Irish Origin

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