The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Blog posts (0 members)
- Candidates for deletion (0 members)
- Disambiguations (0 members)
- Documentation templates (1 member)
- F1.5 Constructors (17 members)
- F1.5 Drivers (17 members)
- F1.5 Engine Suppliers (2 members)
- F1.5 Grands Prix (11 members)
- Formula 1.5 Wiki (6 members)
- General wiki templates (18 members)
- Hatnote templates with errors (0 members)
- Image license templates (13 members)
- Images (4 members)
- Infobox templates (13 members)
- Maintenance (5 members)
- Media (2 members)
- Navbox templates (1 member)
- Notice templates (10 members)
- Pages with reference errors (1 member)
- Pages with script errors (22 members)
- Quote templates (2 members)
- Race Reports (37 members)
- Seasons (20 members)
- Stubs (0 members)
- Template documentation (56 members)
- Templates (11 members)
- Unattributed files (0 members)
- Video (0 members)