Surnames of Irish Origin

4,666 surnames found of Irish origin

Lanahan
The surname Lanahan is of Irish origin and is derived from the Gaelic name Ó Lannacháin, meaning "descendant of Lannachán." The name Lannachán is a diminutive form of the personal name Lannach, whi......
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Lanam
The surname Lanam is of Irish origin and is derived from the Gaelic name Ó Lannáin, meaning "descendant of Lannán." The name Lannán itself is believed to be derived from the word "lann," which mean......
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Landrigan
The surname Landrigan 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 e......
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Landy
The surname Landy is of Irish origin and is derived from the Gaelic name Ó Longáin, meaning "descendant of Longán." Longán is a personal name derived from the word "long," which means "ship" in Gae......
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Langan
The surname Langan is of Irish origin and is derived from the Gaelic name Ó Longáin, meaning "descendant of Longán." The name Longán is believed to be derived from the word "long," meaning "ship" o......
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Lanigan
The surname Lanigan is of Irish origin and is derived from the Gaelic name Ó Leannagáin, meaning "descendant of Leannán," which translates to "lover" or "paramour." It is believed to have originate......
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Lannan
The surname Lannan is of Irish origin and is derived from the Gaelic name Ó Lannáin, meaning "descendant of Lannán." The name Lannán itself is believed to be derived from the word "lann," which mea......
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Lannen
The surname Lannen is of Irish origin and is derived from the Gaelic name Ó Lannáin, meaning "descendant of Lannán." The name Lannán itself is believed to be derived from the word "lann," which mea......
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Lannigan
The surname Lannigan is of Irish origin and is derived from the Gaelic name Ó Lannagáin, meaning "descendant of Lannagán." The name Lannagán itself is a diminutive form of the Gaelic word "lann," w......
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Lannin
The surname Lannin is of Irish origin and is derived from the Gaelic name Ó Lannáin, meaning "descendant of Lannán." The name Lannán itself is believed to be derived from the word "lann," which mea......
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Surnames of Irish Origin

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