Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
HALIFAX
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Sax. Local) From the city of Halifax, in Yorkshire, England, so called from Halig, holy, and faex, hair--holy hair; from the sacred hair of a certain virgin whom a clerk beheaded because she would not comply with his desires. She was afterward canonized. From this circumstance, the village was also called Horton, from Haer, Sax., hair, and ton, a town.
Patronymica Britannica (1860)
HALIFAX. HALLIFAX. The Yorkshire town'.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Surname type: Location or geographical feature
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English