John Aitken
John Aitken may refer to:
- John Aitken (music publisher), Scottish-American music publisher
- John the Painter or John Aitken
- John Aitken (surgeon), Scottish surgeon
- John Aitken (editor), Scottish editor
- John Aitken (meteorologist)
- John Aitken (politician), mayor of Wellington, New Zealand
- John Aitken (footballer, born 1870), Scottish footballer
- Johnny Aitken, racing driver
- John Aitken (footballer, born 1894), Scottish footballer
- John Aitken (biologist), British-born Australian-based reproductive biologist
- John Aitken (bowls), Scottish lawn bowler