Bayfield is a surname. Notable people with the surname include:
Henry Wolsey Bayfield (1795–1885), English Royal Navy admiral M. A. Bayfield (1852–1922), English classical scholar, educator and Anglican priest Martin Bayfield (born 1966), English actor, broadcaster, and rugby union player Richard Bayfield (died 1531), English Protestant martyr Robert Bayfield, 17th-century English physician St. Clair Bayfield (1875–1967), American actor Tony Bayfield (born 1946), British Reform rabbi