The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Abilities (24 members)
- Abomination art (18 members)
- Abominations (31 members)
- Achievements (53 members)
- Adventure sounds (3,261 members)
- Adventures (323 members)
- All Tavern Brawl card data (4 members)
- All boss card data (4 members)
- All card data (163 members)
- All cards (244 members)
- All choice card data (6 members)
- All removed card data (6 members)
- Alternate hero card data (0 members)
- Alternate hero cards (0 members)
- Alternate heroes (0 members)
- Alternate portraits (0 members)
- Amalgam art (1 member)
- Amalgams (10 members)
- Ambiguous card infobox usages (0 members)
- Amboxes (2 members)
- Ancient art (14 members)
- Ancients (29 members)
- Animated card images (330 members)
- Animated object art (13 members)
- Animated objects (53 members)
- Ankoan (2 members)
- Ankoan art (2 members)
- Annihilan (12 members)
- Annihilan art (2 members)
- Arakkoa (5 members)
- Arakkoa art (3 members)
- Arena (2 members)
- Arena card data (0 members)
- Arena cards (0 members)
- Arena format cards (1,718 members)
- Arena only cards (41 members)
- Arte Demônio (2 members)
- Arte Elfo Noturno (2 members)
- Arte Orc (1 member)
- Arte Sporeggar (1 member)
- Articles with dead external links (0 members)
- Artists (495 members)
- Artworks with unknown artists (1 member)
- Attributes (9 members)
- Audio files (199 members)
- Austria (0 members)
- Battlegrounds (60 members)
- Battlegrounds bartenders (1 member)
- Battlegrounds boards (1 member)
- Battlegrounds card data (0 members)