John Hart

John Hart may refer to:

• John Hart (New Jersey politician) (c. 1711–1779), delegate from New Jersey to the Continental Congress and a signer of the United States Declaration of Independence
• John Hart (spelling reformer) (died 1574), English grammarian and officer of arms
• John Hart (governor) (died 1740), British colonial administrator, Governor of the Leeward Islands, 1721–1728
• John Hart (soldier) (1706–1777), American soldier
• John Hart (doctor) (1751–1836), American surgeon and politician
• John Hart (Governor of Maryland) 18th-century American politician
• John E. Hart (c. 1820–1863), American sailor
• John Hart (South Australian colonist) (1809–1873), sailor, mill-owner and politician
• John Seely Hart (1810–1877), American author and educator
• John Hart (Canadian politician) (1879–1957), premier of British Columbia in 1940s
• Johnny Hart (1931–2007), American cartoonist
• John Hart (actor) (1917–2009), American actor
• Johnny Hart (footballer) (born 1928), British footballer
• John Hart (journalist) (born 1932), American journalist
• John Hart (speedway rider) (born 1941), English speedway rider
• John Hart (baseball) (born 1948), American baseball manager
• John Hart (rugby coach) (born 1946), New Zealand rugby coach
• John P. Hart (born 1960), American activist
• John Hart (author) (born 1965), American novelist
• John Hart (rugby union) (born 1982), British rugby player
• John Hart (classics) (1936–2011), first male winner of UK Mastermind
• John Stephen Hart (bishop) (1866–1952), bishop in the Anglican Church of Australia
• Jack Hart (state senator) (John A. Hart, Jr.), Democratic member of the Massachusetts State Senate
• John Hart, aka James L. Hart, U.S. Congressional candidate in 2004 and 2006
• Captain John Hart (Torchwood), fictional character on Torchwood