John Creighton may refer to:John Oliver Creighton, American astronaut John W. Creighton Jr. (1932–2020), American businessman John Creighton, 1st Earl Erne (1731–1828), Irish peer John Creighton (1772–1833), son of the preceding, MP for Lifford John Creighton, American naval officer involved in the Little Belt affair in 1811 John Creighton (archaeologist), British archaeologist John Creighton (judge) (1721–1807), lawyer and judge in Nova Scotia John Creighton (warden) (1817–1885), merchant, politician and prison official in Ontario, Canada John Creighton (1794–1878), lawyer and politician in Nova Scotia, Canada John A. Creighton (1831–1907), businessman in Omaha, Nebraska John Creighton (1937–2022), New Zealand rugby union player John Creighton (surgeon) (1768–1827), president of the Royal College of Surgeons in Ireland John Creighton (priest), Chancellor of Christ Church Cathedral and Dean of Ferns