John may refer to:
- Johnny, Yosaku's bounty hunting partner and friend of Roronoa Zoro.
- John Giant, a Marine vice admiral at the Marine Headquarters.
- Captain John, a zombie on Thriller Bark.
- John's Candies Shop, a shop located on Fish-Man Island.
- John, a member of the Amber Pirates in the video game One Piece: World Seeker.