

One Piece Grand Battle 3 is an action-adventure video game developed by Ganbarion and released in 2003. It serves as the third installment in the Grand Battle series, following Grand Battle! 2. The game launched exclusively in Japan on December 11, 2003, for the PlayStation 2 and Game Cube. The Game Cube version included a demo of One Piece: Going Baseball, which could be played on the Game Boy Advance. Only Luffy and Enel were available as playable characters in the demo. The game was never officially translated into English. Featuring sixteen playable characters and seven stages, the game is based on the One Piece storyline up to the Skypiea Arc. Each character has access to more than two special attacks and can utilize the environment as part of their combat strategy.
| PS2 | December 11, 2003 |
| NGC | December 11, 2003 |