Family History and Genealogy Resources by Surname
Miller Surname Origin
(Origin Scottish) One who attends a grist-mill. Meillear, Gaelic, having large lips; malair, Gaelic, a merchant; maillor, Gaelic, from maille, armor, and fear, a man--a man in armor, having a coat of mail, a soldier.
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.
Miller Surname Meaning and Family Facts
There is more to Miller family history than the origin of your surname:
A Miller Family History Thought:
Whenever there's a will, you'll see an heir loom.