Cannon may refer to:
- The recurring weapon type.
- The Tower of Babil Cannons from Final Fantasy IV.
- The Sister Ray from Final Fantasy VII.
- The enemy ability from Final Fantasy IX.
- The Cannon Superstructure from Final Fantasy XII.
- The Talon Unit from Final Fantasy Legend III.
- The enemy ability from Final Fantasy Record Keeper.
- The Zeus Cannon from Final Fantasy: The Spirits Within.