Family History and Genealogy Resources by Surname
Shannon Surname Origin
(Origin Gaelic) From the Shannon, a river of Ireland. The tranquil, gentle river, from sen, gentle, and abhain, a river. Shan-eon, the tranquil river. S before a vowel, in the Gaelic, has the sound of sh. The river Seine, in France, has the same signification. Shanon--the ancient river, from sean, old, and oun or obhain, a river.
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.
Shannon Surname Meaning and Family Facts
There is more to Shannon family history than the origin of your surname:
A Shannon Family History Thought:
'The past isn't dead. It isn't even past.' --William Faulkner