John Cartwright
John Cartwright may refer to:
- John Cartwright (political reformer), supporter of American independence and British political reform
- John Cartwright (painter), English painter and friend of Henry Fuseli
- John Solomon Cartwright, Canadian businessman, lawyer, judge, farmer, and political figure
- John Campbell Cartwright, British philatelist
- John Robert Cartwright, Chief Justice of Canada
- John Cartwright (British politician), British Labour and SDP Member of Parliament
- John Cartwright (footballer), English professional footballer with West Ham and Crystal Palace in the 1950s and 1960s
- John Cartwright (American football), American football player and coach as well as Baptist pastor
- John Cartwright (lawyer), professor of contract law at the University of Oxford
- John Cartwright (rugby league), Australian rugby league coach and former player