The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Templates not safe for use in citation templates (1 member)
- Templates that add a tracking category (22 members)
- Templates that generate named references (1 member)
- Templates that generate short descriptions (5 members)
- Templates tracking Wikidata (1 member)
- Templates used by AutoWikiBrowser (1 member)
- Templates used by Twinkle (1 member)
- Templates using TemplateData (43 members)
- Templates using TemplateStyles (10 members)
- Templates using an unknown approach for internationalisation (1 member)
- Templates using data from Wikidata (3 members)
- Templates using the Wikipedia license migration system (3 members)
- Test cases using output parameter (2 members)
- Text-specific formatting and function templates (2 members)
- The Midnight Accessories (33 members)
- The Midnight Apparel (76 members)
- The Midnight Merchandise (149 members)
- The Midnight Outerwear (16 members)
- The Midnight Physical Releases (2 members)
- The Midnight Posters (22 members)