Surnames of Irish Origin

4,666 surnames found of Irish origin

Legan
The surname Legan is of Irish origin and is derived from the Gaelic name Ó Leagáin, meaning "descendant of Leagán." Leagán is a personal name derived from the word "leag," which means "to lay down"......
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Leggans
The surname Leggans is of Scottish origin and is derived from the Gaelic name MacGille Fhaolain, meaning "son of the servant of St. Fillan." St. Fillan was a 7th-century Irish saint who was known f......
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Lehan
The surname Lehan is of Irish origin and is derived from the Gaelic name Ó Leatháin, meaning "descendant of Leathan." Leathan is a personal name that translates to "broad" or "wide." The name likel......
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Lehane
The surname Lehane is of Irish origin and is derived from the Gaelic name Ó Liatháin, meaning "descendant of Liathán." Liathán is a personal name derived from the word "liath," which means "grey" o......
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Leheny
The surname Leheny is of Irish origin and is derived from the Gaelic name Ó Leathlobhair, meaning "descendant of Leathlobhair." Leathlobhair is a personal name composed of the elements "leath," mea......
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Leiran
The surname Leiran is of Irish origin and is derived from the Gaelic name Ó Léirgheáin, meaning "descendant of Léirgheán." The name Léirgheán is believed to be a personal name derived from the word......
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Lemish
The surname Lemish is of Scottish origin and is derived from the Gaelic name MacGilleMhaois, meaning "son of the servant of St. Maolmhaodhog." The name Maolmhaodhog is a combination of the Gaelic w......
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Len
The surname Len is of Irish origin and is derived from the Gaelic name "Ó Leannáin," meaning "descendant of Leannán." The name Leannán itself translates to "lover" or "sweetheart" in English. There......
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Lenaghan
The surname Lenaghan is of Irish origin and is derived from the Gaelic name "Ó Leannacháin," meaning "descendant of Leannachán." The name Leannachán is a diminutive form of "leannán," which transla......
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Lenahan
The surname Lenahan is of Irish origin and is derived from the Gaelic name "Ó Leannacháin," meaning "descendant of Leannachán." The name Leannachán is a diminutive form of "leannán," which translat......
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Surnames of Irish Origin

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