John Percival (1779–1862) was a United States Navy officer.
John Percival, known as Mad Jack Percival, was a celebrated officer in the United States Navy during the Quasi-War with France, the War of 1812, the campaign against West Indies pirates, and the Mexican–American War.
John Percival may also refer to:
- John Percival (Mayor of London), Mayor in 1498
- John Percival (bishop) (1834–1918), English educator and bishop
- John Percival (botanist) (1863–1949), English agricultural botanist
- John Percival (politician) (1870–1942), Australian politician
- John Percival (rugby league) (20th century), New Zealand rugby league referee
- John Percival (TV producer) (1937–2005), British television producer and documentary maker
- John Percival (cricketer) (1902–1983), English cricketer
John Percival was the first headmaster of Clifton College, where he made his reputation as a great educator. In his 17 years at Clifton numbers rose to 680. He accepted the presidency of Trinity College, Oxford to recover from his years at Clifton. It was from Trinity that he went to Rugby to become headmaster of Rugby School before becoming Bishop of Hereford.
John Whitehead Percival was an English-born Australian politician.
John Percival was a New Zealand rugby league referee. An international referee, in 1995 Percival was one of the New Zealand Rugby League's inaugural inductions into the "Legends of League".
