John Aleyn (disambiguation)
# John Aleyn (disambiguation)

John Aleyn (died 1373) was Canon of Windsor and Archdeacon of Suffolk.

John Aleyn may also refer to:

* John Aleyn (MP) (fl. 1337), Member of Parliament for Worcestershire
* John Aleyn (fl. 1646–1649), English law reporter; see Aleyn's Reports
