The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Tenth Doctor Stories (3 members)
- Tenth Doctor stories (16 members)
- Terileptil Stories (1 member)
- The Administration of Gallifrey (10 members)
- The New Renegade Characters (1 member)
- The New Renegade Seasons (3 members)
- The Other Stories (1 member)
- The Time Meddlers Series (1 member)
- Third Doctor Stories (3 members)
- Third Doctor stories (1 member)
- Thirteenth Doctor Stories (3 members)
- Thirteenth Doctor stories (20 members)
- Three Part Stories (7 members)
- Through Time and Space Characters (5 members)
- Through Time and Space Stories (28 members)
- Through Time and Space seasons (3 members)
- Time Lords (44 members)
- Timeline leads (1 member)
- Titles (4 members)
- Toymaker's Realm (19 members)
- Twelfth Doctor Stories (5 members)
- Twelfth Doctor stories (29 members)
- Two Part Stories (2 members)
- Typing-aid templates (1 member)
- Unified table cell templates (2 members)
- Valeyard Stories (2 members)
- Vardan Stories (3 members)
- Vex (12 members)
- Vex/Time Lord War (1 member)
- Vex Characters (1 member)
- Vex Stories (17 members)
- Vice Presidents of Gallifrey (1 member)
- Villains (63 members)
- Visual Effects Assistant (1 member)
- Visual Effects Designers (1 member)
- Voord Stories (1 member)
- WIDWWA format templates (1 member)
- Weeping Angel Stories (2 members)
- Whovian's calendar (41 members)
- Wikipedia administration templates (1 member)
- Wikipedia formatting and function templates (1 member)
- Wikipedia metatemplates (1 member)
- Wikipedia pages with incorrect protection templates (7 members)
- Wikipedia variable-like templates (1 member)
- Wikitext typing-aid templates (1 member)
- Wirrn Stories (2 members)
- Writers (82 members)
- YearNav templates (1 member)
- Yeti Stories (1 member)
- Zygon Stories (3 members)