Bonsall is a surname. Notable people with the surname include:
Sir Arthur Bonsall (1917–2014), British intelligence officer Brian Bonsall (born 1981), American actor Crosby Bonsall (1921–1995), American artist and children's book author and illustrator Elizabeth Fearne Bonsall (1861–1956), American painter and illustrator Frank Bonsall (1920–2011), British mathematician I. H. Bonsall (1833–1909), American photographer Joe Bonsall (1948–2024), American singer William Hartshorn Bonsall (1846–1905), Californian businessman and politician Will Bonsall (born 1950s), American author, seed saver and farmer
See also Peter Bonsall-Boone AM (1938–2017), Australian LGBT rights activist Bonsal (disambiguation)