John Hynes

• John Hynes (footballer), former Australian rules football player
• John Hynes (ice hockey), ice hockey coach
• John Hynes (politician), Massachusetts politician
• John Hynes (priest), professor of archaeology and president of University College
• Jack Hynes (soccer), Scottish-born American soccer forward
• John Hynes (rugby league), Australian rugby league footballer
• John J. Hynes, Newfoundland-born American labor union leader