John Palmer may refer to:
Other people
- John Palmer, 4th Earl of Selborne (1940–2021), British peer and businessman
- John Palmer (actor) (c.1742–1798), English actor
- John Palmer (author) (1885–1944), English author
- John Palmer (Commissary of New South Wales) (1760–1833)
- John Palmer (director) (1943–2020), Canadian film and theatre director
- John Palmer (postal innovator) (1742–1818), inventor of the lightweight mail coach
- John Palmer (colonial administrator) (c. 1650 – c. 1700), first Englishman to purchase land in the Rockaway Peninsula
- John Palmer (TV journalist) (1935–2013), former NBC News correspondent
- John Horsley Palmer (1779–1858), English banker and Governor of the Bank of England
- John J. Palmer (born 1965), metallurgist and author of How to Brew
- John Anderson Palmer (born 1965), American philosopher
- John Ross Palmer (born 1974), American artist
- Johnny Ace Palmer (born late 1950s), American magician