The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Amshan/Geography (4 members)
- Amshan/History (8 members)
- Amshan/Locations (5 members)
- Amshan/People (4 members)
- Amshan/Settlements (3 members)
- Anadi (4 members)
- Ancestries (13 members)
- Angareza (1 member)
- Animals (5 members)
- Aquatic elves (1 member)
- Arboreals (1 member)
- Arda-Mulissu (9 members)
- Arda-Mulissu/Geography (2 members)
- Arda-Mulissu/History (2 members)
- Arda-Mulissu/Locations (2 members)
- Arda-Mulissu/People (4 members)
- Arda-Mulissu/Settlements (2 members)
- Arda-Mulissu/Towns (2 members)
- Arrajan Wilds (7 members)
- Arrajan Wilds/Geography (4 members)
- Arrajan Wilds/History (2 members)
- Arrajan Wilds/Locations (4 members)
- Arrajan Wilds/People (1 member)
- Aserdus (18 members)
- Ashnan (11 members)
- Ashnan/Cities (1 member)
- Ashnan/Geography (2 members)
- Ashnan/History (6 members)
- Ashnan/Locations (2 members)
- Ashnan/Settlements (3 members)
- Ashnan/Towns (2 members)
- Asteria (9 members)
- Asteria/Cities (1 member)
- Asteria/Geography (3 members)
- Asteria/History (3 members)
- Asteria/Locations (3 members)
- Asteria/People (2 members)
- Asteria/Settlements (2 members)
- Asteria/Towns (1 member)
- Astronomical objects (2 members)
- Atchafalaya (1 member)
- Avaris (4 members)
- Avaris/People (2 members)
- Awakened creatures (1 member)
- Azarketi (1 member)
- Azarketis (1 member)
- Bakari (1 member)
- Barat Rkund (7 members)
- Barat Rkund/Cities (1 member)
- Barat Rkund/Geography (1 member)