Family History and Genealogy Resources by Surname
O'Donoghue Surname Origin
The descendants of Donogh.
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'Donoghue Surname Meaning and Family Facts
There is more to O'Donoghue family history than the origin of your surname:
A O'Donoghue Family History Thought:
'Remember, remember always, that all of us, and you and I especially, are descended from immigrants and revolutionaries.' --Franklin D. Roosevelt