Family History and Genealogy Resources by Surname
Kerr Surname Origin
(Origin Gaelic, Welsh, and Cornish British) Kaer, a castle; figuratively, strong, valiant; car, dear, a kinsman, a friend; Danish, Kier, dear, lovely.
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.
Kerr Surname Meaning and Family Facts
There is more to Kerr family history than the origin of your surname:
A Kerr Family History Thought:
'If you would not be forgotten,
As soon as you are dead and rotten,
Either write things worthy of reading,
Or do things worthy of writing.' --Benjamin Franklin, May 1738