The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- (Diablo II) (1 member)
- 3rd party programs (2 members)
- Abbreviations (12 members)
- Abbreviations and Acronyms (6 members)
- Act Bosses (7 members)
- Act I (29 members)
- Act II (22 members)
- Act III (26 members)
- Act III levels (24 members)
- Act II levels (20 members)
- Act IV (8 members)
- Act IV levels (6 members)
- Act I (Diablo II) (1 member)
- Act I levels (27 members)
- Act V (28 members)
- Act V levels (24 members)
- Acts (11 members)
- Aldur's Watchtower (5 members)
- Alpha Diablo II Images (39 members)
- Amazon (11 members)
- Amazon Unique Items (1 member)
- Amazon images (6 members)
- Amazon items (1 member)
- Amazon skills (38 members)
- Amazon strategy guides (Diablo II) (68 members)
- Amulets (1 member)
- Amulets (Diablo II) (4 members)
- Angels (1 member)
- Animals (55 members)
- Arcanna's Tricks (9 members)
- Armor (195 members)
- Artefacts (1 member)
- Assassin (9 members)
- Assassin skills (36 members)
- Assassin strategy guides (Diablo II) (45 members)
- Barbarian (8 members)
- Barbarian skills (38 members)
- Barbarian strategy guides (Diablo II) (38 members)
- Basics (56 members)
- Battle.net (28 members)
- Belts (1 member)
- Belts (Diablo II) (5 members)
- Blizzard (2 members)
- Blizzard North (2 members)
- Blizzard images (1 member)
- Body armor (1 member)
- Body armor (Diablo II) (10 members)
- Boilerplates (1 member)
- Boots (1 member)
- Boots (Diablo II) (3 members)