Family History and Genealogy Resources by Surname
Lucas Surname Origin
The same as Luke, luminous. Lucas, arising to him.
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.
Lucas Surname Meaning and Family Facts
There is more to Lucas family history than the origin of your surname:
A Lucas Family History Thought:
What is past is prologue.