The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Actors (58 members)
- Adaptations (15 members)
- Administration help (2 members)
- Administrative images (17 members)
- Adults (33 members)
- Animals (91 members)
- Animation (1 member)
- Antagonists (2 members)
- Archenland (6 members)
- Archenlanders (17 members)
- Armies (10 members)
- Articles in need of expansion (89 members)
- Articles in need of polishing (10 members)
- Articles nominated for deletion (complete list) (137 members)
- Articles to be merged (7 members)
- Aslan's Army (65 members)
- Aslan's Country (17 members)
- Astronomy (9 members)
- Authors (4 members)
- BBC Films (3 members)
- Badgers (3 members)
- Bears (3 members)
- Beings (41 members)
- Beings (BBC) (1 member)
- Beings (CTW) (0 members)
- Beings (ITV) (0 members)
- Beings (Walden) (8 members)
- Beings and Creatures sorted by universe (4 members)
- Birds (8 members)
- Blog posts (45 members)
- Book adaptations (2 members)
- Book cover galleries (0 members)
- Book illustrations (7 members)
- Books (3 members)
- C. S. Lewis (3 members)
- Calendar (5 members)
- Calormen (22 members)
- Calormenes (27 members)
- Cancelled (2 members)
- Canids (5 members)
- Capitals (10 members)
- Castles (5 members)
- Categories (4 members)
- Centaurs (7 members)
- Characters (201 members)
- Characters (BBC) (9 members)
- Characters (CTW) (6 members)
- Characters (ITV) (7 members)
- Characters (Walden) (34 members)
- Characters (books) (3 members)