Surnames of Irish Origin

4,666 surnames found of Irish origin

Orielly
The surname O'Reilly is of Irish origin and is derived from the Gaelic name "Ó Raghallaigh," meaning "descendant of Raghallach." The name Raghallach itself is believed to be derived from the elemen......
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Oriley
The surname O'Riley is of Irish origin and is derived from the Gaelic name Ó Raghallaigh, meaning "descendant of Raghallach." The name Raghallach itself is believed to have originated from the Old ......
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Oriordan
The surname O'Riordan is of Irish origin and is derived from the Gaelic name Ó Riordáin, meaning "descendant of Riordán." The name Riordán itself is a personal name derived from the Old Norse name ......
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Ormon
The surname Ormon is of Irish origin and is derived from the Gaelic name "Ó Ruadháin," meaning "descendant of Ruadhán." The personal name Ruadhán is derived from the word "ruadh," which means "red-......
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Ormond
The surname Ormond is of Irish origin and is derived from the Gaelic name "Ó Ruaidh," meaning "descendant of Ruadh." Ruadh is a personal name that translates to "red-haired" or "red complexion." Th......
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Ormonde
The surname Ormonde is of Irish origin and is derived from the Gaelic name "Ó Ruaidhín," meaning "descendant of Ruadhán." The name Ruadhán is derived from the word "ruadh," which means "red-haired"......
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Oroark
The surname Oroark is of Irish origin and is derived from the Gaelic name Ó Ruairc, meaning "descendant of Ruarc." Ruarc is an ancient personal name of uncertain meaning, but it is believed to have......
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Oroke
The surname Oroke is of Irish origin and is derived from the Gaelic name Ó Ruairc, meaning "descendant of Ruarc." Ruarc is an ancient personal name that is believed to have originated from the Nors......
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Ororke
The surname Ororke is of Irish origin and is derived from the Gaelic name Ó Ruairc, meaning "descendant of Ruarc." Ruarc is a personal name of uncertain origin, but it is believed to have been deri......
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Orouke
The surname Orouke is of Irish origin and is derived from the Gaelic name Ó Ruadháin, meaning "descendant of Ruadhán." The name Ruadhán is derived from the word "ruadh," which means "red-haired" or......
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Surnames of Irish Origin

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