John Aitchison (1926–2016) was a Scottish statistician.
John or Jack Aitchison may also refer to:
John Aitchison (cricketer) (1928–2009), English cricketer John Aitchison (British Army officer) (1779–1875) John D. Aitchison, Canadian American molecular cell biologist Jack Aitchison (born 2000), Scottish footballer Jack Aitchison (Australian footballer) (1911–1976), Australian rules footballer Jack Aitchison, candidate in Midlothian Council election, 2007 and 2012
See also Craigie Aitchison (painter) (John Ronald Craigie Aitchison, 1926–2009), Scottish painter