The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 4/4 (17 members)
- A (1 member)
- Am (1 member)
- Blog posts (0 members)
- Bm (2 members)
- C (1 member)
- C minor (3 members)
- Candidates for deletion (0 members)
- Cm (2 members)
- Community (1 member)
- Covers (20 members)
- D (2 members)
- D minor (1 member)
- Disambiguations (0 members)
- Dm (1 member)
- Documentation templates (1 member)
- Every Song! (2 members)
- F (1 member)
- G (1 member)
- G major (1 member)
- General wiki templates (18 members)
- Hatnote templates with errors (0 members)
- Image license templates (13 members)
- Images (4 members)
- Infobox templates (13 members)
- Maintenance (6 members)
- Media (2 members)
- Navbox templates (1 member)
- Notice templates (10 members)
- Pages with broken file links (0 members)
- Quote templates (2 members)
- Screenshots (0 members)
- Stubs (0 members)
- Template documentation (56 members)
- Templates (11 members)
- Unattributed files (0 members)
- Videos (0 members)
- Volume 1 (1 member)
- Volume 2 (1 member)
- Volume 3 (2 members)
- Volume 5 (3 members)
- Volume 6 (1 member)
- Volume 7 (1 member)
- Volume 8 (1 member)
- Walt Ribeiro Wiki (6 members)
- Wiki skin images (2 members)