Family History and Genealogy Resources by Surname
Randal Surname Origin
(Saxon) These names have the same signification. Fair-help, from Ran, fair, and ulph, help.
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.
Randal Surname Meaning and Family Facts
There is more to Randal family history than the origin of your surname:
A Randal Family History Thought:
Whenever there's a will, you'll see an heir loom.