Porteus is a surname. Notable people with the surname include:
Beilby Porteus (1731–1809), Church of England bishop Hugh Gordon Porteus (1906–1993), art and literature critic Joe Porteus (1925–1995), English professional footballer Morgan Porteus (1917–2019), American Episcopalian bishop Stanley Porteus (1883–1972), Australian psychologist
See also Porteus (operating system) Porteous (disambiguation)