Family History and Genealogy Resources by Surname

O'Mahony Surname Origin

The descendant of Mahon, which signifies a bear.

Source: An Etymological Dictionary of Family and Christian Names With an Essay on their Derivation and Import; Arthur, William, M.A.; New York, NY: Sheldon, Blake, Bleeker & CO., 1857.




O'Mahony  Surname Meaning and Family Facts

O'Mahony Last Name Meaning
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A O'Mahony Family History Thought:

'The past isn't dead. It isn't even past.' --William Faulkner




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