Obst is a German language surname, which means "fruit". It may refer to:
Alan Obst (born 1987), Australian football player Andreas Obst (born 1996), German basketball player Andrew Obst (born 1964), Australian football player Chris Obst (born 1979), Australian football player David Obst (born 1946), American literary agent Erich Obst (1886–1981), German geographer Henry Obst (1906–1975), American football player Herbert Obst (born 1936), Canadian fencer Lynda Obst (born 1950), American film producer Marie-Therese Obst (born 1996), German-born Norwegian javelin thrower Michael Obst (rower) (born 1944), German rower Michael Obst (composer) (born 1955), German composer Peter Obst (1936–2017), Australian football player Sam Obst (born 1980), Australian rugby league player Seweryn Obst (1847- 1917), Polish painter, illustrator and ethnographer Trevor Obst (1940–2015), Australian football player Tania Obst, Head coach Adelaide Thunderbirds netball team