The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- File message boxes (1 member)
- File namespace templates (2 members)
- Formatting templates (1 member)
- Fraction templates (2 members)
- GPL Templates (5 members)
- Gazette (1 member)
- Graphics templates (3 members)
- HTML typing-aid templates (3 members)
- Hatnote modules (4 members)
- Hatnote templates (5 members)
- Hatnote templates for category pages (3 members)
- Header templates (2 members)
- Hidden categories (5 members)
- Highway infobox templates (1 member)
- ISO 639 templates (2 members)
- If-then-else templates (9 members)
- Image with comment templates (10 members)
- Infobox modules (2 members)
- Infobox templates with module parameter (2 members)
- Informational (4 members)
- Inline templates (2 members)
- Internal article-link templates (2 members)
- Internal category-link templates (3 members)
- Internal link maintenance templates (1 member)
- Internal link templates (6 members)
- Internal template-link templates (4 members)
- Interwiki category linking templates (1 member)
- Interwiki link templates (2 members)
- Judgments (1 member)
- Judgments by accusation (4 members)
- Judgments for ban bypass (1 member)
- Judgments for chat abuse (2 members)
- Judgments for chat spam (4 members)
- Judgments for derogatory messages (1 member)
- Judgments for griefing (2 members)
- Judgments for griefing private property (3 members)
- Judgments for griefing the public farm (5 members)
- Judgments for theft (7 members)
- Judgments with translations (1 member)
- Judgments with translations in German (1 member)
- Lang-x templates (0 members)
- Language-related modules (22 members)
- Language infobox templates (2 members)
- Language tag handling templates (1 member)
- Language templates (1 member)
- Legend templates (2 members)
- License-related tags (5 members)
- Licensing Templates (9 members)
- Light rail stations (1 member)
- Light rail stations in Nordstetten (2 members)