John Olsen (disambiguation)

John Olsen (born 1945) was premier of South Australia, 1996–2001.

John Olsen may also refer to:

• John W. Olsen (born 1955), American archaeologist
• John Olsen (Australian artist) (1928–2023), Australian landscape and abstract artist
• John Olsen (Danish artist) (1938–2019), Danish artist specializing in sculpture
• John Olsen (filmmaker) (1888–1959), Danish producer, screenwriter and studio owner
• John Olsen (footballer) (1928–2001), Norwegian footballer
• Jack Olsen (1925–2002), American journalist and author

• John Olson (disambiguation)
• Jon Olsen (born 1969), American freestyle swimmer
• Jon Olsson (born 1982), skier