The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Album articles lacking alt text for covers (3 members)
- Album chart usages for Billboard200 (2 members)
- Album chart usages for Finland (1 member)
- Album chart usages for Sweden (1 member)
- Album chart usages for UK (1 member)
- AllMusic template missing ID and not in Wikidata (1 member)
- All articles with dead external links (1 member)
- All pages needing cleanup (1 member)
- All redirect categories (3 members)
- Andrew W.K. albums (4 members)
- Andrew W.K. songs (1 member)
- Article message templates (1 member)
- Article message templates with missing parameters (1 member)
- Articles with dead external links from July 2021 (1 member)
- Articles with hAudio microformats (3 members)
- Articles with hCards (1 member)
- Articles with invalid date parameter in template (1 member)
- Articles with permanently dead external links (1 member)
- Articles with short description (4 members)
- CatAutoTOC generates no TOC (2 members)