Family History and Genealogy Resources by Surname
O'Dugan Surname Origin
The descendant of Dugan.
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'Dugan Surname Meaning and Family Facts
There is more to O'Dugan family history than the origin of your surname:
A O'Dugan Family History Thought:
'People will not look forward to posterity who never look backward to their ancestors.' --Edmund Burke