Gunston is a surname. Notable people with the surname include:

• Bill Gunston (1927–2013), aviation and military author
• 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

• Norman Gunston, a satirical TV character performed by Australian actor and comedian Garry McDonald