Benfield is a surname. Notable people with the surname include:
Andrea Benfield (born 1978), English journalist
Christopher Benfield Carter (1844–1906), Canadian politician
Derek Benfield (1926–2009), British playwright and actor
Fred Benfield (1937–2007), Australian rower who competed in the 1956 Summer Olympics
John Benfield, British actor, who has appeared in 75 TV episodes or films starting in 1981
Robert Benfield (died 1649), seventeenth-century actor, longtime member of the King's Men
Tommy Benfield (died 1918), English footballer
Warren Benfield (1913–2001), classical double bass player