The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Stations along the Nordstetten LRT line 1 (3 members)
- Stations along the Nordstetten LRT line 2 (1 member)
- Stations by Location (2 members)
- Stations by Network (1 member)
- Stations by Operator (1 member)
- Stations by Type (2 members)
- Stations in Luciopoli (1 member)
- Stations in the Nordstetten LRT network (2 members)
- Stations on Spawn Island (1 member)
- Stations operated by the NEG (2 members)
- Streets in Nordstetten (1 member)
- String manipulation templates (7 members)
- Subtemplates of Template Convinfobox (10 members)
- Talk message boxes (2 members)
- Talk namespace templates (2 members)
- Technic Stations (1 member)
- Template:Template category with no topic or description (1 member)
- TemplateData (1 member)
- Template Convert (1 member)
- Template documentation (5 members)
- Template documentation pages (248 members)
- Template metamodules (1 member)
- Template namespace templates (8 members)
- Template stylesheets (1 member)
- Template templates (2 members)
- Template test cases (2 members)
- Templates (1 member)
- Templates based on the String Lua module (4 members)
- Templates emitting hCard microformats (1 member)
- Templates for soft redirects (1 member)
- Templates generating hAtom (1 member)
- Templates generating hCalendars (2 members)
- Templates generating hCards (2 members)
- Templates generating hCards and Geo (6 members)
- Templates generating microformats (1 member)
- Templates that add a tracking category (15 members)
- Templates that are not mobile friendly (1 member)
- Templates that generate named references (1 member)
- Templates that generate short descriptions (6 members)
- Templates using TemplateData (80 members)
- Templates using TemplateStyles (32 members)
- Templates using data from Wikidata (3 members)
- Templates with coordinates fields (6 members)
- Text-specific formatting and function templates (3 members)
- Text color templates (3 members)
- Tracking categories (2 members)
- Tracking templates (7 members)
- Train Line Proposals (1 member)
- Train Lines (5 members)
- Train lines operated by the NEG (1 member)