As described in historical dictionaries

An Etymological Dictionary of Family and Christian Names (1857)

(origin: Sax. Local) A town in the county of Somerset, Eng., famous for its hot baths; so named from the Saxon, bad, Teutonic, bad, a place to bathe or wash in. It was called by the Saxons Acmanceaster, or the "sick folks' town;" and by the Britons, Caerbaddon, from Caer, a fortified place or city, and baddon, a bathing-place, from badd, a bath.

Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.


Patronymica Britannica (1860)

BATH. BATHE. A city in Somersetshire.

Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.


Origin: English

Region of origin: British Isles

Country of origin: England

Religion of origin: Christian

Language of origin: English

BritishSurnames.uk is a Good Stuff website.