Family History and Genealogy Resources by Surname
O'Boyle Surname Origin
O'Boyle is an anglicised version of Ó Baoighill (one of several old spellings). The ancestral ring fort is on a lake in South West Donegal.
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'Boyle Surname Meaning and Family Facts
There is more to O'Boyle family history than the origin of your surname:
A O'Boyle Family History Thought:
'If man cares not for his roots, then how can he care for his branches?' --Doyle M Davis