The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- HiveWings (15 members)
- Humans (1 member)
- IceWings (17 members)
- Imported vocabulary (8 members)
- LeafWings (8 members)
- Legends (2 members)
- License templates (22 members)
- Location (0 members)
- Locations (16 members)
- Lua-based templates (4 members)
- MediaWiki.org website (1 member)
- Module documentation pages (1 member)
- Modules subject to page protection (1 member)
- MudWings (7 members)
- NightWings (14 members)
- Noindexed pages (19 members)
- Page status templates (1 member)
- Pages monitored by Wikipedia bots (1 member)
- Pages used in system messages needing protection (1 member)
- Pages using infobox templates with ignored data cells (1 member)
- Pages with ignored display titles (4 members)
- Pages with script errors (9 members)
- Pages with too many expensive parser function calls (1 member)
- People (2 members)
- RainWings (9 members)
- Redirect templates (1 member)
- Request templates (1 member)
- SandWings (14 members)
- SeaWings (18 members)
- SilkWings (11 members)
- SkyWings (10 members)
- Soft redirect templates (1 member)
- Stubs (151 members)
- Template documentation (1 member)
- Template documentation pages (15 members)
- Template namespace templates (1 member)
- Templates (3 members)
- Templates needing substitution checking (1 member)
- Templates using TemplateData (10 members)
- Tribe (0 members)
- Tribes (11 members)
- Warning templates (2 members)
- WikiProject link templates (1 member)
- Wikipedia articles with style issues by month (1 member)
- Wikipedia modules (1 member)
- Wikipedia never-substituted templates (2 members)
- Wikipedia non-free file copyright templates (1 member)
- Wikipedia non-free images (19 members)
- Wikipedia page-section templates (1 member)
- Wikipedia section templates (2 members)