The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Intricate templates (3 members)
- Kids (10 members)
- Layout templates (4 members)
- License tags attribution (1 member)
- License tags share-alike (1 member)
- List formatting and function templates (2 members)
- Listen template using plain parameter (2 members)
- Logo (1 member)
- Logos (3 members)
- Lore (4 members)
- Lua-based templates (36 members)
- Marriage templates (1 member)
- Microformat (uF) message templates (5 members)
- Microsoft-related templates (1 member)
- Modules for general use (1 member)
- Modules in beta (2 members)
- Modules subject to page protection (15 members)
- Modules that add a tracking category (3 members)
- Modules that check for strip markers (1 member)
- Modules tracking Wikidata (1 member)
- Modules using data from Wikidata (1 member)
- Monsters (18 members)
- Mozilla-related templates (1 member)
- Multi-column templates (6 members)
- Music Videos (1 member)
- Music infobox templates (14 members)
- Music templates (1 member)
- Music videos (7 members)
- Musician templates (2 members)
- Namespace manipulation templates (1 member)
- Navboxes using background colours (5 members)
- Navigational box wrapper templates (2 members)
- Navigational boxes (1 member)
- Navigational boxes without horizontal lists (4 members)
- Needs fixing (1 member)
- New Zealand copyright tags (2 members)
- Nocturnal (8 members)
- Noindexed pages (1 member)
- Non-free posters (23 members)
- Non-free use rationale templates (0 members)
- Official website not in Wikidata (1 member)
- Organization infobox templates (1 member)
- Pages used in system messages needing protection (3 members)
- Pages using DynamicPageList3 parser tag (16 members)
- Pages using Tabber parser tag (18 members)
- Pages using div col with small parameter (4 members)
- Pages using duplicate arguments in template calls (2 members)
- Pages using infobox templates with ignored data cells (2 members)
- Pages using track listing with unknown parameters (5 members)
- Pages with YouTube Embeds (0 members)