| Aka: | Ace Attorney Encyclopedia |
| Console: | Nintendo DS |
| TV Standard: | NTSC-J |
| Country: | Japan |
| Developer(s): | Capcom |
| Publisher(s): | Capcom |
| Release Date: | 2007-04-12 |
| Players: | 1 |
| Co-op: | No |
| ESRB: | Not Rated |
| Type: | Education, Utility |
Gyakuten Saiban Jiten is an encyclopedia of sorts for the first three games in the Ace Attorney series, as well as the DS-exclusive case from the original game (Rise from the Ashes). It was released for the Nintendo DS as a part of the Japanese Limited Edition version of Gyakuten Saiban 4 (Apollo Justice: Ace Attorney), and contains character profiles, evidence lists, character animations, opening cinematics, background images, music from the game, and so on. It did not see an international release.
