John Aitken may refer to:
- John Aitken (music publisher) (c. 1745âÂÂ1831), Scottish-American music publisher
- John the Painter or John Aitken (1752âÂÂ1777)
- John Aitken (surgeon) (died 1790), Scottish surgeon
- John Aitken (editor) (1793âÂÂ1833), Scottish editor
- John Aitken (meteorologist) (1839âÂÂ1919)
- John Aitken (politician) (1849âÂÂ1921), mayor of Wellington, New Zealand
- John Aitken (footballer, born 1870), Scottish footballer
- Johnny Aitken (1885âÂÂ1918), racing driver
- John Aitken (footballer, born 1894) (c. 1894âÂÂ1917), Scottish footballer
- John Aitken (biologist) (born 1947), British-born Australian-based reproductive biologist
- John Aitken (bowls) (born 1954), Scottish lawn bowler
See also