The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 2010 April Fools (1 member)
- 2010 April Fools Images (9 members)
- 2011 April Fools (4 members)
- 2011 April Fools Images (4 members)
- Act III (1 member)
- Act IV (1 member)
- Act IV Zones (0 members)
- Adrian Smith Images (2 members)
- Affix Templates (18 members)
- Affix stubs (3,087 members)
- Alek Images (4 members)
- Amazon (34 members)
- Amazon Builds (4 members)
- Amazon images (1 member)
- Amulets (2 members)
- Anarkhy Images (1 member)
- Andariel Images (1 member)
- Angel Images (1 member)
- Angels (13 members)
- Angiris Council (7 members)
- Animals (55 members)
- April Fools (2 members)
- April Fools Images (2 members)
- Arcane Damage Items (14 members)
- Archery Skills (4 members)
- Area stubs (3 members)
- Armor (20 members)
- Arreat Crater (1 member)
- Article Management Templates (1 member)
- Articles With Trivia (28 members)
- Assassin (34 members)
- Assassin Builds (4 members)
- Assassin Skill Trees (2 members)
- Assassin katars (25 members)
- Atrumentis Images (5 members)
- Audio (2 members)
- Auriel Images (3 members)
- Avatar Images (5 members)
- Axes (0 members)
- Azmodan Images (7 members)
- Baal Images (8 members)
- Barbarian (2 members)
- Barbarian Active Skills (27 members)
- Barbarian Builds (4 members)
- Barbarian Images (15 members)
- Barbarian Passive Skills (17 members)
- Barbarian Skills (48 members)
- Barbarian skills (0 members)
- Barbarians (1 member)
- Battle for Elements Images (2 members)