Surnames of Irish Origin

4,666 surnames found of Irish origin

Lonabaugh
The surname Lonabaugh is of Irish origin and is derived from the Gaelic name "Ó Longabaugh," meaning "descendant of Longabaugh." The name Longabaugh itself is believed to be a variant of the Irish ......
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Londergan
The surname Londergan is of Irish origin and is derived from the Gaelic name "Ó Longargáin," meaning "descendant of Longargán." The name Longargán is believed to be a personal name derived from the......
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Londrigan
The surname Londrigan is of Irish origin and is derived from the Gaelic name "Ó Longargáin," meaning "descendant of Longargán." The name Longargán is believed to be a personal name derived from the......
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Lonergan
The surname Lonergan is of Irish origin and is derived from the Gaelic name "Ó Longargáin," meaning "descendant of Longargán." The name is composed of the elements "long," meaning "ship," and "garg......
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Looby
The surname Looby is of Irish origin and is derived from the Gaelic name "Ó Lúbaigh," meaning "descendant of Lúbaigh." The name Lúbaigh is believed to be derived from the word "lúb," which means "l......
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Loonam
The surname Loonam is of Irish origin and is derived from the Gaelic name Ó Luainín, meaning "descendant of Luainín." The name Luainín is a diminutive form of the personal name Luan, which means "w......
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Loonan
The surname Loonan is of Irish origin and is derived from the Gaelic name Ó Luinín, meaning "descendant of Luinín." The name Luinín is believed to be a diminutive form of the word "luin," which tra......
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Looney
The surname Looney is of Irish origin and is derived from the Gaelic word "lúnaithe," meaning "warrior" or "hero." It is believed to have originated as a nickname for someone who displayed brave or......
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Lordan
The surname Lordan is of Irish origin and is derived from the Gaelic name "Ó Lorcáin," meaning "descendant of Lorcán." Lorcán is a personal name derived from the word "lorc," which means "fierce" o......
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Lorden
The surname Lorden is of Irish origin and is derived from the Gaelic name "Ó Lorcáin," meaning "descendant of Lorcán." Lorcán is a personal name derived from the word "lorc," which translates to "f......
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Surnames of Irish Origin

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