Surnames of Irish Origin

4,666 surnames found of Irish origin

Omahoney
The surname Omahoney is of Irish origin and is derived from the Gaelic name Ó Mathghamhna, which means "descendant of Mathghamhain." Mathghamhain is a personal name that is believed to have origina......
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Omahony
The surname Omahony is of Irish origin and is derived from the Gaelic name Ó Mathghamhna, which means "descendant of Mathghamhain." Mathghamhain is a personal name that is believed to have originat......
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Omaley
The surname Omaley is of Irish origin and is derived from the Gaelic name Ó Máille, meaning "descendant of Máille." The name Máille is believed to be a personal name derived from the word "máel," w......
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Omalia
The surname Omalia is of Irish origin and is derived from the Gaelic name Ó Maoláidh, which means "descendant of Maoláidh." The name Maoláidh is composed of the elements "maol," meaning "bald" or "......
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Omalley
The surname O'Malley is of Irish origin and is derived from the Gaelic name Ó Máille, meaning "descendant of Máille." The name Máille is believed to have originated from the Gaelic word "máel," whi......
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Omally
The surname O'Mally is of Irish origin and is derived from the Gaelic name Ó Máille, meaning "descendant of Máille." The name Máille is believed to be a personal name derived from the Gaelic word "......
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Oman
The surname Oman is of English origin and has multiple possible meanings. It could be a habitational name for someone from a place called Oman, which is derived from the Old English word "ofer" mea......
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Omara
The surname Omara is of Irish origin and is derived from the Gaelic name "Ó Mára," meaning "descendant of Mára." The name Mára is believed to be a variant of the name Máire, which is the Irish form......
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Omarra
The surname Omarra is of Irish origin and is derived from the Gaelic name Ó Mearadhaigh, which means "descendant of Mearadhach." The name Mearadhach is believed to be derived from the word "mearadh......
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Omeally
The surname Omeally is of Irish origin and is derived from the Gaelic name Ó Maolmhaodhóg, meaning "descendant of Maolmhaodhóg." The name Maolmhaodhóg is composed of the elements "maol," meaning "b......
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Surnames of Irish Origin

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