The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
(first | last) View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500)- 360 (5 members)
- AI (32 members)
- Active (77 members)
- Agents of Chrovos (5 members)
- Alien (10 members)
- Alliance of Defense (3 members)
- Antagonists (63 members)
- Armor Enhancements (19 members)
- Article management templates (1 member)
- BlogListingPage (0 members)
- Blog posts (174 members)
- Blood Gulch Chronicles (13 members)
- Blue Team (41 members)
- Blues and Reds (13 members)
- Browse (8 members)
- Candidates for Deletion (1 member)
- Cast and Crew (90 members)
- Characters (278 members)
- Charon Industries (34 members)
- Chorus Trilogy (9 members)
- Citation templates (1 member)
- Content (5 members)
- Cosmic Powers (12 members)
- Deceased (108 members)
- Disambiguations (6 members)
- Easter Eggs (3 members)
- Episodes (556 members)
- Epsilon-Double (15 members)
- Esoteric templates (2 members)
- Family (1 member)
- Family Shatters (12 members)
- Federal Army of Chorus (18 members)
- Formatting templates (1 member)
- Former Antagonist (15 members)
- Forums (5 members)
- Freelancer (49 members)
- Function templates (1 member)
- General wiki templates (7 members)
- Grifball: Double Agent (4 members)
- Grifball: Expansion (4 members)
- Grifball: Franchise Player (4 members)
- Grifball: Zero Tolerance (4 members)
- Halo 3 Preparations (6 members)
- Halo Recap (5 members)
- Header templates (3 members)
- Help (3 members)
- Help desk (5 members)
- Hidden categories (2 members)
- Holiday Plans (4 members)
- Image wiki templates (6 members)