The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Articles needing cleaning up (45 members)
- Articles needing translation (0 members)
- Articles which use infobox templates with no data rows (3 members)
- Articles with disputed statements (1 member)
- Articles with unsourced statements (1 member)
- Asia country and territory topics templates (1 member)
- Asian countries (52 members)
- Assassins (1 member)
- Atlanticism (1 member)
- Atrocities committed by the United States (1 member)
- Attempted Colour Revolutions (4 members)
- Australian journalists (1 member)
- Austrian economists (1 member)
- Austro-Hungarian military personnel of World War I (1 member)
- Author: Vladimir Lenin (0 members)
- Autonomous regions in China (4 members)
- Ba'athist states (1 member)
- Banned editors (0 members)
- Bar charts (5 members)
- Bar graphs (0 members)