John Hartley may refer to:
- John Anderson Hartley (1844âÂÂ1896), Australian educator
- John Hartley (academic), Australian academic, professor of cultural studies
- Jock Hartley (John Cabourn Hartley, 1874âÂÂ1963), cricketer played for Oxford University, Sussex CCC and England
- John Hartley (general), Australian major general
- John Hartley, one half of Nottinghamshire musical duo Phil and John
- John Hartley (poet) (1839âÂÂ1915), Yorkshire
- John Hartley (tennis) (1849âÂÂ1935), English clergyman who won Wimbledon