The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Anime (7 members)
- Article management templates (5 members)
- Article stubs (3 members)
- BlogListingPage (0 members)
- Blog posts (1 member)
- Browse (4 members)
- Candidates for deletion (0 members)
- Candidates for speedy deletion (0 members)
- Category templates (3 members)
- Characters (2 members)
- Clannad Original Soundtrack songs (1 member)
- Community (6 members)
- Content (1 member)
- Copyright (0 members)
- Disambiguations (1 member)
- Drama CDs (3 members)
- Files (2 members)
- Forums (6 members)
- General wiki templates (42 members)
- Help (5 members)
- Help desk (2 members)
- Hidden categories (4 members)
- Image wiki templates (9 members)
- Images (4 members)
- Infobox templates (10 members)
- Locations (0 members)
- Locked pages (1 member)
- Music (2 members)
- Navbox templates (1 member)
- Navboxes (1 member)
- New pages (0 members)
- Organisation (0 members)
- Organization (9 members)
- Pages lacking furigana (0 members)
- Pages proposed for deletion (0 members)
- Pages with broken file link (0 members)
- Pages with broken file links (1 member)
- Places (1 member)
- Policy (2 members)
- Site administration (4 members)
- Site maintenance (5 members)
- Songs (1 member)
- Template documentation (74 members)
- Templates (13 members)
- Videos (17 members)
- Watercooler (2 members)