Machan, Machaň, or Macháň (Czech and Slovak feminine: Machaňová or Macháňová) is a surname. Notable people with the surname include:
Josef Machaň (1906–1979), Czech athlete
Josef Machan (sport shooter) (born 1957), Czech sports shooter
Matt Machan (born 1991), English cricketer
Róbert Machán (born 1948), Hungarian tennis player
Tibor Machan (1939–2016), Hungarian-American philosopher
Tom Machan (born 1940s), Canadian football player
Richard Morton Machan (1965–1941), historic Australian see Machans Beach, Queensland