Surnames of Irish Origin

4,666 surnames found of Irish origin

Monegan
The surname Monegan is of Irish origin and is derived from the Gaelic name Ó Mongáin, meaning "descendant of Mongán." The name Mongán is believed to have originated from the Old Irish word "mongach......
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Monen
The surname Monen is of Irish origin and is derived from the Gaelic name Ó Maoláin, meaning "descendant of Maolán." The personal name Maolán is derived from the word "maol," which means "bald" or "......
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Mongan
The surname Mongan is of Irish origin and is derived from the Gaelic name "Ó Mongáin," meaning "descendant of Mongán." The name Mongán itself is believed to be derived from the Old Irish word "mong......
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Mongoven
The surname Mongoven is of Irish origin and is derived from the Gaelic name "Ó Mongábháin," meaning "descendant of Mongán." The name Mongán is believed to have originated from the Old Irish word "m......
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Monholland
The surname Monholland is of Irish origin and is derived from the Gaelic name "Ó Maolchalann," meaning "descendant of Maolchalann." The name Maolchalann is composed of the elements "maol," meaning ......
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Monick
The surname Monick is of Irish origin and is derived from the Gaelic name Ó Muineacháin, meaning "descendant of Muineacháin." The name Muineacháin is believed to be derived from the word "muine," w......
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Monigan
The surname Monigan is of Irish origin and is derived from the Gaelic name Ó Muimhneacháin, meaning "descendant of Muimhneachán." The name Muimhneachán is believed to be derived from the word "muim......
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Monley
The surname Monley is of Irish origin and is derived from the Gaelic name Ó Maonghaile, which means "descendant of Maonghal." The name Maonghal itself is believed to be a personal name derived from......
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Monnahan
The surname Monnahan is of Irish origin and is derived from the Gaelic name Ó Manacháin, meaning "descendant of the monk." It is believed to have originated as a nickname for someone who had a monk......
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Monohan
The surname Monohan is of Irish origin and is derived from the Gaelic name "Ó Manacháin," meaning "descendant of the monk." It is believed to have originated as a nickname for someone who had a mon......
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Surnames of Irish Origin

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