John Innes may refer to:
- John Innes (historian), English historian
- John Innes (philanthropist) (1829–1904), English philanthropist; also the John Innes Centre, founded by funds bequeathed by Innes
- and John Innes Compost, developed by the Centre.
- John Innes (politician), Toronto municipal politician
- John de Innes (c. 1370–1414), Bishop of Moray
- John Innes (actor), TV actor