The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 1989 Anime Series (174 members)
- 2024 Anime Episodes (13 members)
- 2024 Anime Series (15 members)
- Album covers (10 members)
- Albums (10 members)
- Aliases (1 member)
- All articles with unsourced statements (6 members)
- All redirect templates (1 member)
- Animal-human hybirds (0 members)
- Animal-human hybrids (6 members)
- Animals (14 members)
- Anime (196 members)
- Anime-only characters (39 members)
- Anime-only items (8 members)
- Anime-only locations (10 members)
- Anime Special images (19 members)
- Anime Special title cards (2 members)
- Anime images (13 members)
- Anything Goes Martial Arts (2 members)
- Archival templates (1 member)
- Article management templates (0 members)
- Article message boxes (8 members)
- Article stubs (300 members)
- Articles needing cleanup (6 members)
- Articles requiring cleanup (0 members)
- Articles with unsourced statements (6 members)
- Artistic-2 (1 member)
- Astronomy templates (2 members)
- Big Trouble in Nekonron, China (5 members)
- Big Trouble in Nekonron, China images (64 members)
- BlogListingPage (0 members)
- Blog posts (13 members)
- Book covers (1 member)
- Book scans (2 members)
- Boolean, register, and condition testing templates (0 members)
- Browse (28 members)
- CC (11 members)
- Candidates for Deletion (1 member)
- Candidates for Deletion (Clean Slate) (1 member)
- Candidates for Deletion (Image naming) (1 member)
- Candidates for Deletion (No fair use rationale) (1 member)
- Candidates for Deletion (No license metadata) (1 member)
- Candidates for Deletion (Poor filename) (1 member)
- Candidates for Deletion (Quick) (1 member)
- Candidates for Deletion (Unofficial image) (1 member)
- Candidates for Deletion (Wikipedia page text copy) (1 member)
- Candidates for deletion (0 members)
- Category namespace templates (2 members)
- Category redirects (0 members)
- Category templates (3 members)