Surnames of Irish Origin

4,666 surnames found of Irish origin

Gahagen
The surname Gahagen is of Irish origin and is derived from the Gaelic name Ó Gadhagáin, meaning "descendant of Gadhaigín." The name Gadhaigín is a diminutive form of the personal name Gadhaig, whic......
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Gahan
The surname Gahan is of Irish origin and is derived from the Gaelic word "gaothán," meaning "a small, light breeze." It is a descriptive surname that likely originated as a nickname for someone who......
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Gaherty
The surname Gaherty is of Irish origin and is derived from the Gaelic name "Ó Gadhra," meaning "descendant of Gadhra." The name Gadhra itself is believed to have originated from the word "gadhar," ......
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Gain
The surname Gain is of English and Irish origin, derived from the Old English word "gain" or the Irish Gaelic word "gáin," both meaning "a profit" or "a gain." It is likely that the name was origin......
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Gaine
The surname Gaine is of Irish origin and is derived from the Gaelic word "géibheann," meaning "to take or seize." It is believed to have originated as a nickname for someone who was forceful or agg......
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Gainor
The surname Gainor is of Irish origin and is derived from the Gaelic name "Mac Fhionnbhairr," meaning "son of Fionnbharr." Fionnbharr is a personal name composed of the elements "fionn," meaning "f......
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Gaitley
The surname Gaitley is of Irish origin and is derived from the Gaelic name Ó Gáibhtheach, meaning "descendant of Gáibhtheach." The name Gáibhtheach is believed to be derived from the Gaelic word "g......
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Galaway
The surname Galaway is of Irish origin and is derived from the Gaelic name Ó Gallchobhair, meaning "descendant of Gallchobhair." The name Gallchobhair is composed of the elements "gall," meaning "f......
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Galigher
The surname Galigher is of Irish origin and is derived from the Gaelic name Ó Gallchóir, meaning "descendant of Gallchóir." The name Gallchóir itself is composed of the elements "gall," meaning "fo......
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Galiher
The surname Galiher is of Irish origin and is derived from the Gaelic name Ó Gallchobhair, meaning "descendant of Gallchobhair." The name Gallchobhair is composed of the elements "gall," meaning "f......
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Surnames of Irish Origin

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