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Irish Names that Start With O

Updated October 2024

Names26
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Total Names26

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About this list

There are 26 Irish names that start with the letter O for boys and girls, including Oscar, Orin, Orla, Oona, Oisin, Oran, Odhran, O'shea, O'neal, O'keeffe, O'brien, O'hara, O'brian, O'callahan, O'connor, O'donnell, O'donovan, O'fallon, O'grady, and O'keefe.

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