The term King can refer to several things in the Kingdom Hearts series:
- King Mickey Mouse, the king of Disney Castle.
- King Triton, the ruler of Atlantica.
- The Jungle King Keyblade that Sora receives after sealing Deep Jungle's Keyhole.
- The Save the King shield, the highest shield that Goofy can wield in Kingdom Hearts and Kingdom Hearts II.
- The "King of the Night" form Saïx's Claymore takes when equipped with the Rage Gear.