The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Air Elementals (BZPRPG III) (7 members)
- Air Elementals (NBZP) (1 member)
- Air Elementals (Six Kingdoms) (1 member)
- Air Elementals (The Academy) (1 member)
- Air Elementals (The Gate) (1 member)
- Ak'rei'an (10 members)
- Akiri (9 members)
- Alignment (9 members)
- Alive (2 members)
- Alive (BZPRPG III) (34 members)
- Alive (Bara Magna (Series)) (17 members)
- Ancora (1 member)
- Annual Competitions (Bara Magna (Series)) (1 member)
- Anxilia (1 member)
- Approved (1 member)
- Approved (BZPRPG III) (2 members)
- Approved Species (BZPRPG III) (0 members)
- Archaic (BZPRPG III) (1 member)
- Archaic Tech (1 member)
- Archaic Tech (BZPRPG III) (3 members)
- Article stubs (38 members)
- Artificial Intelligence (BZPRPG) (5 members)
- Ash Tribe (2 members)
- Assassin (2 members)
- Assassinations (1 member)
- Assassinations (BZPRPG III) (3 members)
- Assassins (1 member)
- Athlete (2 members)
- Avian (2 members)
- Axonn's Species (Bionicle Kingdoms IV) (1 member)
- B.A.T. Hybrid (The Gate) (1 member)
- BZPRPG (4 members)
- BZPRPG I (71 members)
- BZPRPG III (24 members)
- BZPRPG III Arc I (1 member)
- BZPRPG III Arc II (1 member)
- BZPRPG III Arc III (1 member)
- BZPower (2 members)
- Ba-Skakdi (3 members)
- Ba-Toa (10 members)
- Bad Company (5 members)
- Bara Magna (Series) (9 members)
- Battlemasters (2 members)
- Battles (7 members)
- Battles (BZPRPG) (1 member)
- Bionicle Kingdoms (2 members)
- Blacksmith (4 members)
- Bo-Lesterin (3 members)
- Bo-Toa (12 members)
- Bone Hunters (3 members)
- Browse (1 member)
- Buildings (1 member)
- Candidates for deletion (19 members)
- Canon (57 members)
- Canon Species (1 member)
- Carpenter (1 member)
- Carrex (AMG) (1 member)
- Carvers (2 members)
- Chaotic Evil (5 members)
- Chaotic Good (2 members)
- Chaotic Neutral (3 members)
- Character Status (1 member)
- Character Status (BZPRPG III) (5 members)
- Characters (355 members)
- Characters ((NBZP)) (1 member)
- Characters (ACD) (3 members)
- Characters (AMG) (15 members)
- Characters (A City Divided) (1 member)
- Characters (A Hollow Cry) (1 member)
- Characters (A Midnight Grey) (1 member)
- Characters (BZPIII) (1 member)
- Characters (BZPRPG) (50 members)
- Characters (BZPRPGIII) (1 member)
- Characters (BZPRPG 2010) (1 member)
- Characters (BZPRPG I) (38 members)
- Characters (BZPRPG III) (123 members)
- Characters (BZRPG) (2 members)
- Characters (Bara Magna) (1 member)
- Characters (Bara Magna (Series)) (28 members)
- Characters (Bionicle Kingdoms I-III) (1 member)
- Characters (Bionicle Kingdoms I-IV) (3 members)
- Characters (Bionicle Kingdoms III-IV) (1 member)
- Characters (Bionicle Kingdoms IV) (3 members)
- Characters (Fracture) (1 member)
- Characters (NBZP) (27 members)
- Characters (NBZPRPG) (3 members)
- Characters (NBZRPG) (1 member)
- Characters (New BZPRPG) (7 members)
- Characters (OE) (1 member)
- Characters (SK) (0 members)
- Characters (Six Kingdoms) (1 member)
- Characters (Six Kingdoms (Series)) (1 member)
- Characters (The Academy) (3 members)
- Characters (The Gate) (7 members)
- Characters (ToS) (1 member)
- Characters BZPRPG III (1 member)
- Chivinix (1 member)
- Chronicler's Company (7 members)
- Chroniclers (4 members)
- City of Fear (2 members)