The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 10th Floor (4 members)
- 10th Floor Hierarchy (24 members)
- 2nd Floor (3 members)
- 3rd Floor (1 member)
- 5th Floor (2 members)
- 5th Floor Hierarchy (8 members)
- 6th Floor (5 members)
- 6th Floor Hierarchy (12 members)
- 7th Floor (2 members)
- 7th Floor Hierarchy (7 members)
- 8th Floor (0 members)
- 8th Floor Hierarchy (5 members)
- 9th Floor (16 members)
- 9th Floor Hierarchy (24 members)
- AOG Images (14 members)
- A La Carte Chapters (51 members)
- A La Carte Volumes (3 members)
- Aberage Players (3 members)
- Academic Groups (4 members)
- Actors (3 members)
- Administration (4 members)
- Adult Dragons (18 members)
- Adventurer's Guild (7 members)
- Adventurer Groups (25 members)
- Adventurers (43 members)
- Ainz Images (54 members)
- Ainz Ooal Gown (33 members)
- Air Transportation System (4 members)
- Albedo's Secret Unit (3 members)
- Albedo Images (26 members)
- Alchemists (6 members)
- Alraunes (2 members)
- Ambassadors (4 members)
- Ancient Dragons (15 members)
- Angels (11 members)
- Anime Episodes (57 members)
- Anime Images (566 members)
- Apparels (112 members)
- Arachnoids (7 members)
- Archangels (3 members)
- Archer Groups (3 members)
- Archers (14 members)
- Archery Unit (4 members)
- Area Guardians (12 members)
- Areas (41 members)
- Arenas (2 members)
- Argland Council State (9 members)
- Armors (17 members)
- Armorsmiths (3 members)
- Army of Death (2 members)