John Leonard
John Leonard is the name of the following people:
- John Leonard (Bishop) (1829–1908), Irish clergyman, Bishop of Charadrus
- John Leonard, Baron Leonard (1909–1983), British politician (Labor Party)
- John Leonard (curler) , Canadian curler
- John Leonard (critic) (1939–2008), American literary critic
- John E. Leonard (1845–1878), American politician
