Family History and Genealogy Resources by Surname
Sweeney Surname Origin
(Origin Irish) shortened form of McSweeney, an Anglicized form of Gaelic Mac Suibhne ‘son of Suibhne’, a byname meaning ‘pleasant’.
Sweeney Surname Meaning and Family Facts
There is more to Sweeney family history than the origin of your surname:
A Sweeney Family History Thought:
'People will not look forward to posterity who never look backward to their ancestors.' --Edmund Burke