The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Authors (RDM) (4 members)
- Authors (TOS) (6 members)
- Automatically archived pages (29 members)
- Avatars (2 members)
- BAC (41 members)
- BSG vs BSG (6 members)
- Baltar's Escape (38 members)
- Baltar Cultists (5 members)
- Banned Battlestar Wiki users (0 members)
- Basestar areas (3 members)
- Basestar areas (TOS) (2 members)
- Bastille Day (65 members)
- Battlestar Galactica (2 members)
- Battlestar Galactica: Cylon Apocalypse (31 members)
- Battlestar Galactica: Cylon War (30 members)
- Battlestar Galactica: Death of Apollo (54 members)
- Battlestar Galactica: Folly of the Gods (12 members)
- Battlestar Galactica: Ghosts (2 members)
- Battlestar Galactica: Gods & Monsters (2 members)
- Battlestar Galactica: Origins (3 members)