Family History and Genealogy Resources by Surname
Keys Surname Origin
Probably from Keyus, an old Roman word for a warden or keeper.
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.
Keys Surname Meaning and Family Facts
There is more to Keys family history than the origin of your surname:
A Keys Family History Thought:
'The past isn't dead. It isn't even past.' --William Faulkner