Gunston is a surname. Notable people with the surname include:
Bill Gunston (1927–2013), aviation and military author Edward Gunston (1913–1991), Australian cricketer Jack Gunston (born 1991), Australian rules footballer Gunston baronets Sir Derrick Gunston, 1st Baronet (1891–1985), British politician Sir John Gunston, 3rd Baronet (born 1962), English photographer
Fictional characters Norman Gunston, a satirical TV character performed by Australian actor and comedian Garry McDonald
See also Gunston (cigarette), a South African cigarette brand