The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 1-Star Relics (1 member)
- 2-Star Relics (14 members)
- 3-Star Relics (28 members)
- 4-Star Relics (82 members)
- 5-Star Relics (53 members)
- Armor (71 members)
- Armors (4 members)
- Beastiary (30 members)
- Candidates for deletion (1 member)
- Candidates for speedy deletion (0 members)
- Chapter 1 (14 members)
- Chapter 2 (33 members)
- Chapter 3 (34 members)
- Chapter 4 (42 members)
- Chapter 5 (25 members)
- Chapter 6 (42 members)
- Chapter Guide (1 member)
- Character Data (5 members)
- Character Images (66 members)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Copyright templates (10 members)
- Crafting Recipes (1 member)
- Crystal Dungeons (7 members)
- Crystals (1 member)
- Daggers (12 members)
- Daily Experience Dungeons (15 members)
- Debuffs (7 members)
- Disambiguations (0 members)
- Dissidia Final Fantasy Opera Omnia Wiki (29 members)
- Documentation templates (55 members)
- Encountered Villain Characters (15 members)
- Equipment (1 member)
- Event Characters (7 members)
- Events (31 members)
- Fighting (10 members)
- Formatting templates (23 members)
- Front page sections (2 members)
- Gameplay (4 members)
- Gear (3 members)
- Glossary of Terms (1 member)
- Greatswords (15 members)
- Guard Orbs (3 members)
- Guides (4 members)
- Guns (11 members)
- Hidden categories (0 members)
- Images (120 members)
- Images needing improvement (0 members)
- Infobox templates (5 members)