The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 1880 (40 members)
- 1980 (363 members)
- 2003 Video Game (53 members)
- 2007 Video Game (1 member)
- A Death in the Family (3 members)
- A World for the Killing! (1 member)
- A to Z (4,333 members)
- Actors in Various Galactica-Related Roles (3 members)
- Adama (TOS) (1 member)
- Administration Templates (2 members)
- Aerilon (3 members)
- Affidavit (4 members)
- All Things Past and Present (4 members)
- Alternate Timeline (44 members)
- Amok Time (5 members)
- Animals (13 members)
- Annihilation! (28 members)
- Apotheosis (10 members)
- Apotheosis (episode) (50 members)
- Archive Pages (115 members)
- Archive Templates (8 members)
- Armaggedon (1 member)
- Articles Needing Expansion (79 members)
- Articles actively undergoing a major edit (21 members)
- Articles being translated (22 members)
- Articles by Writer (The Caprican) (10 members)
- Articles for grammar, spelling, and organizational review (0 members)
- Articles linked from high traffic sites (8 members)
- Articles previously protected (0 members)
- Articles requiring citations (28 members)
- Articles suggested to be merged (1 member)
- Articles suggested to be moved (1 member)
- Articles suggested to be split (0 members)
- Articles that failed to be unprotected (0 members)
- Articles that may be biased (4 members)
- Articles to be Cleaned Up (21 members)
- Articles with Audio playback (5 members)
- Articles written by Adam Swiderski (2 members)
- Articles written by Ann Royall (16 members)
- Articles written by Caleb Barlow (16 members)
- Articles written by Carl Kipp (7 members)
- Articles written by Harold Sims (12 members)
- Articles written by Laurel Hill (9 members)
- Articles written by Matthew Riley (9 members)
- Articles written by Ralston Sinclair (12 members)
- Articles written by Sharon Edmonson (21 members)
- Articles written by Toccara Castleman (2 members)
- Artists (1 member)
- Artists (TOS) (1 member)
- Athena (TOS) (1 member)