The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Cities (7 members)
- Countries (5 members)
- E24 (1 member)
- Government (2 members)
- History and Lore (8 members)
- Infrastructure (1 member)
- International Communities (1 member)
- Islands (2 members)
- Languages (5 members)
- Lists (1 member)
- Lua-based templates (3 members)
- Modules for general use (1 member)
- Modules in beta (1 member)
- Pages using navbox columns without the first column (1 member)
- Pages with TemplateStyles errors (7 members)
- Pages with broken file links (4 members)
- Pages with script errors (6 members)
- People (1 member)
- Places (5 members)
- Politics (1 member)
- Programming typing-aid templates (2 members)
- Project pages with short description (1 member)
- Rail routemap templates (1 member)
- Railways (18 members)
- Redirects from moves (1 member)
- Redirects from shortcuts (1 member)
- Registration Numbers (3 members)
- Route diagram templates (4 members)
- Rules (1 member)
- Screenshots (1 member)
- Television table cell templates (1 member)
- Template documentation pages (6 members)
- Templates using TemplateData (3 members)
- Trains (1 member)
- Transport (11 members)
- Wikipedia editing guidelines (1 member)
- Wikipedia template guidelines (1 member)
- Wikipedia template help (1 member)
- Wikipedia variable-like templates (1 member)