The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.

• WMAU (2 members)
• WMAU skin (2 members)
• WMCON (2 members)
• WMF (2 members)
• Website (1 member)
• Western Australia (1 member)
• WikiCite (8 members)
• WikiClub (1 member)
• WikiClubWest (27 members)
• WikiCon (3 members)
• WikiCon Aotearoa (1 member)
• WikiCon Australia (5 members)
• WikiCon NZ (1 member)
• WikiD (1 member)
• WikiLearn (1 member)
• WikiTour (7 members)
• Wiki Loves Earth (5 members)
• Wiki Science (2 members)
• Wikiconference Australia 2015 (2 members)
• Wikidata (43 members)
• Wikidata13 (2 members)
• Wikidata Fellows (5 members)
• Wikihistories (1 member)
• Wikimania (11 members)
• Wikimedia (1 member)
• Wikimedia Aoteaora New Zealand (4 members)
• Wikimedia Australia (4 members)
• Wikimedia Australia membership (2 members)
• Wikimedia Australia organisation (32 members)
• Wikimedia Australia reports (1 member)
• Wikimedia Commons (12 members)
• Wikimedia User Group of Aotearoa New Zealand (6 members)
• Wikimedia projects (4 members)
• Wikimedian in Residence (15 members)
• Wikipedia (2 members)
• Wikipedia 25 (1 member)
• Wikipedia Asian Month (1 member)
• Wikipedia Day (8 members)
• Wikipedia and/as Data (1 member)
• Wikipedia scripts (1 member)
• Wikisource (1 member)
• Willunga National Trust (1 member)
• Women's Art Register (5 members)
• WomenInSTEMM (2 members)
• Women Write Wiki (1 member)
• Women in Religion (4 members)
• Womens Art Register (8 members)
• Workshops (1 member)
• Yearly requirements (1 member)
• Years (19 members)