The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- The Midnight Apparel (81 members)
- The Midnight Merchandise (157 members)
- The Midnight Outerwear (17 members)
- The Midnight Physical Releases (2 members)
- The Midnight Posters (24 members)
- The Midnight Prints (5 members)
- The Midnight Shadows (22 members)
- The Midnight Shirts (60 members)
- The Midnight Tour Posters (19 members)
- Ticker symbol templates (1 member)
- Top icon protection templates (3 members)
- Topic-specific metatemplates (2 members)
- Tour posters (1 member)
- Tours (12 members)
- Track listings with input errors (1 member)
- Transwiki guide (2 members)
- Typing-aid templates (3 members)
- Video game media templates (2 members)
- Videos (58 members)
- Websites templates (1 member)
- WikiProject Albums templates (3 members)
- WikiProject Musicians templates (5 members)
- WikiProject Olympics (2 members)
- WikiProject Scouting templates (1 member)
- WikiProject Short descriptions (1 member)
- WikiProject Songs templates (2 members)
- Wikidata templates (1 member)
- Wikipedia administration templates (1 member)
- Wikipedia citation administration (1 member)
- Wikipedia editor help (1 member)
- Wikipedia file copyright templates (1 member)
- Wikipedia files tagged as own work (277 members)
- Wikipedia fully protected files (4 members)
- Wikipedia indefinitely move-protected pages (4 members)
- Wikipedia infoboxes (1 member)
- Wikipedia license migration templates (3 members)
- Wikipedia metatemplates (1 member)
- Wikipedia multilingual support templates (1 member)
- Wikipedia non-free file copyright templates (94 members)
- Wikipedia non-free files with NFUR stated (1 member)
- Wikipedia pages with incorrect protection templates (50 members)
- Wikipedia template categories (1 member)
- Wikipedia transclusionless templates (4 members)
- Wikipedia utility templates (1 member)