Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
PORT
As described in historical dictionaries
Patronymica Britannica (1860)
PORT. Hugo de Port came into England at the Norman Conquest, and held fifty-five lordships in llie counties of Hants and Dorset, as tenant in capite. One of his descendants assumed the surname of SaintJohn. A Hubert de Port was also a tenant in capite in Hampshire, at the making of Domesday Book. Kelham's Domesday.
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