John Sheppard can refer to several people:
- John Sheppard (Stargate) for the fictional character from Stargate Atlantis
- John Levi Sheppard for the U.S. Congressman
- John Sheppard (VC) for the Victoria Cross winner
- John Calhoun Sheppard for the governor of South Carolina
- John Sheppard (drummer) for the former member of Acoustic Alchemy
- John Sheppard (composer) for the English composer of the Renaissance
- John Sheppard (ice hockey)
- John Morris Sheppard (1875-1941), known as Morris Sheppard, U.S. politician
- Johnny Sheppard (1903-1968), Canadian ice hockey player
