The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Anti-imperialists (50 members)
- Anti-imperialists by country (1 member)
- Anti-neoliberalism (1 member)
- Anti-racism (3 members)
- Anti-revisionism (5 members)
- Anti-semitic propaganda (0 members)
- Anti-war activists (3 members)
- Anti-war books (2 members)
- Anti-war media (1 member)
- Anti-war movement (4 members)
- Antipsychiatry (1 member)
- Antisemitic propaganda (4 members)
- Antisemitism (6 members)
- Apartheid states (3 members)
- Architecture (1 member)
- Art (8 members)
- Art movements (2 members)
- Articles about library works (1 member)
- Articles containing a deprecated citing method (27 members)
- Articles containing information from Wikipedia (8 members)