The following categories exist on the wiki, and may or may not be unused.
Also see wanted categories.
- Abstraction (3 members)
- Academia (1 member)
- Adoxaceae (1 member)
- Aesthetics (0 members)
- Aferika (3 members)
- Ai Vola Tabu (4 members)
- Ai Vola i Momani (1 member)
- Ailadi (1 member)
- Aisi kirimu (2 members)
- Aisi kirimu na sinucodo (1 member)
- All articles with unsourced statements (2 members)
- All country data templates (86 members)
- All pages needing cleanup (1 member)
- Amerika (6 members)
- Anatidae (3 members)
- Apiaceae (1 member)
- Apioideae (1 member)
- Araceae (1 member)
- Archipelagoes of Fiji (1 member)
- Argentina (2 members)
- Article message templates with missing parameters (1 member)
- Articles with invalid date parameter in template (2 members)
- Articles with short description (3 members)
- Articles with unsourced statements from Okotova 2021 (1 member)
- Articles with unsourced statements from September 2016 (1 member)
- Asteraceae (4 members)
- Austria (1 member)
- Azerbaijan (1 member)
- Ba Province (1 member)
- Babel box templates (5 members)
- Bangladesh (1 member)
- Baqe (3 members)
- Bibi (2 members)
- Biology (0 members)
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- Blues (1 member)
- Bogotá (1 member)
- Boivinaka (1 member)
- Boroya (2 members)
- Bosnia kei Herzegovina (2 members)
- Botany (5 members)
- Brazil (3 members)
- Bukawaqa (3 members)
- Bula (4 members)
- Bula (ivakatakilakila) (1 member)
- Bula Qaravi (0 members)
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- Bula vakatamata (1 member)
- Buli iyaya (1 member)
- Bulia (7 members)