The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Six Kingdoms: Rebirth (1 member)
- Six Kingdoms (Series) (10 members)
- Six basic elements, some secondary others Elementals (BZPRPG I) (1 member)
- Skakdi (22 members)
- Skakdi (ACD) (3 members)
- Skakdi (A City Divided) (1 member)
- Skakdi (BZPRPG) (1 member)
- Skakdi (BZPRPG I) (1 member)
- Skakdi (BZPRPG III) (16 members)
- Skakdi (NBZP) (8 members)
- Skakdi (New BZPRPG) (2 members)
- Skrall (Bara Magna (Series)) (2 members)
- Slang (1 member)
- Smoke Elementals (1 member)
- Smoke Elementals (BZRPG) (1 member)
- Society (3 members)
- Sonic Elementals (1 member)
- Sonic Elementals (BZPRPG III) (2 members)
- Sonics Elementals (2 members)
- Sonics Elementals (AMG) (2 members)
- Sonics Elementals (BZPRPG) (1 member)
- Sonics Elementals (BZPRPG I) (2 members)
- Sonics Elementals (BZPRPG III) (5 members)
- Soulswords (9 members)
- Space Ships (BZPRPG) (1 member)
- Species (31 members)
- Species (BZPRPG III) (3 members)
- Species (Bara Magna (Series)) (10 members)
- Species (SK) (0 members)
- Spies (2 members)
- Spirits (BZPRPG) (3 members)
- Sprites (1 member)
- Staff Character (BZPRPG) (1 member)
- Staff Character (BZPRPG I) (1 member)
- Staff Plot (32 members)
- Staff characters (31 members)
- Stagg (BZPRPG) (2 members)
- Steltian (Krekka's Species) (ToS) (1 member)
- Steltians (ToS) (1 member)
- Stone Elementals (3 members)
- Stone Elementals (AMG) (1 member)
- Stone Elementals (BZPRPG I) (2 members)
- Stone Elementals (BZPRPG III) (11 members)
- Stone Elementals (NBZP) (2 members)
- Stone Elementals (New BZPRPG) (2 members)
- Stone Elementals (The Gate) (1 member)
- Storylines (1 member)
- Storylines (BZPRPG) (3 members)
- Storylines (BZPRPG I) (1 member)
- Stud.io Renders (25 members)
- Style Guides (7 members)
- Style Templates (6 members)
- Su-Matoran (4 members)
- Su-Toa (5 members)
- Substances (3 members)
- Substances (BZPRPG III) (5 members)
- Substances (Bara Magna (Series)) (2 members)
- Substances (NBZP) (1 member)
- Ta-Koro (9 members)
- Ta-Koro Guard (17 members)
- Ta-Matoran (10 members)
- Ta-Skakdi (1 member)
- Ta-Toa (24 members)
- Ta-Wahi (23 members)
- Ta-Wahi (BZPRPG III) (3 members)
- Taajar (3 members)
- Taajar Clans (2 members)
- Taverns (6 members)
- Taverns (BZPRPG III) (1 member)
- Team Kanohi Dragon (5 members)
- Technology (14 members)
- Technology (BZPRPG III) (10 members)
- Templates (3 members)
- Templates (BZPRPG) (2 members)
- Temples (1 member)
- Term (1 member)
- Terrorism (5 members)
- Text-Based Role Playing Games (4 members)
- The Academy (BZPRPG) (6 members)
- The Four Peers (5 members)
- The Gate (3 members)
- The Green (Plant Life) Elementals (AMG) (1 member)
- The Mangaia Pact (5 members)
- The Order (2 members)
- The Peers (1 member)
- Thieves (1 member)
- Time Elementals (BZPRPG I) (1 member)
- Timeline (2 members)
- Titan (1 member)
- Titan (BZPRPG) (1 member)
- Titans and Other Species (AMG) (5 members)
- Titans and Other Species (BK) (2 members)
- Titans and Other Species (BZPRPG) (20 members)
- Toa (171 members)
- Toa/Santun (BZPRPG) (1 member)
- Toa/Vortixx hybrid (AMG) (1 member)
- ToaTapio's Main Six (7 members)
- Toa ((NBZP)) (1 member)
- Toa (?) (OE) (1 member)
- Toa (ACD) (16 members)
- Toa (AMG) (8 members)
- Toa (BK) (4 members)
- Toa (BZPRPG) (43 members)
- Toa (BZPRPGIII) (1 member)
- Toa (BZPRPG I) (11 members)
- Toa (BZPRPG III) (51 members)
- Toa (BZRPG) (1 member)
- Toa (Bionicle Kingdoms I-III) (1 member)
- Toa (Bionicle Kingdoms I-IV) (2 members)
- Toa (CoF) (1 member)
- Toa (Metru) (BZPRPG I) (1 member)
- Toa (NBZP) (30 members)
- Toa (NBZPRPG) (3 members)
- Toa (New BZPRPG) (4 members)
- Toa (Six Kingdoms) (1 member)
- Toa (Split-Personality) (AMG) (1 member)
- Toa (The Academy) (3 members)
- Toa (The Gate) (1 member)
- Toa Absolute (BZPRPG I) (1 member)
- Toa Akari (5 members)
- Toa Astha (4 members)
- Toa Daedra (2 members)
- Toa Daedra (NBZP) (1 member)
- Toa Maru (7 members)
- Toa Maru (BZPRPG III) (1 member)
- Toa Mata (BZPRPG) (2 members)
- Toa Mauri (3 members)
- Toa Metru (BZPRPG) (2 members)
- Toa Mutant (BZPRPG) (1 member)
- Toa Nuva (BZPRPG I) (2 members)
- Toa Nuva (The Gate) (1 member)
- Toa Sarsi (2 members)
- Toa Teams (11 members)
- Toa Teams (BZPRPG) (2 members)
- Toa Teams (BZPRPG III) (2 members)
- Toa Ultima (BZPRPG I) (1 member)
- Toa of Lasers (BZPRPG) (1 member)
- Toa of Oil (BZPIII) (1 member)
- Toa of Water (New BZPRPG) (1 member)
- Toatapio Nuva (1 member)
- Tools (3 members)
- Tools/Weapons (1 member)
- Tools (BZPRPG III) (1 member)
- Toroshu (4 members)
- Tournament of Shadows (4 members)
- Trappers (1 member)
- Tribes (Bara Magna (Series)) (14 members)
- Truth (1 member)
- Turaga (12 members)
- Turaga (BZPRPG I) (2 members)
- Turaga (BZPRPG III) (3 members)
- Underground (7 members)
- Undergrounds (BZPRPG) (1 member)
- Unknown; Appears to be a Toa, but really isn't. (Bionicle Kingdoms IV) (1 member)
- Unknown (BZPRPG) (3 members)
- Unknown (BZPRPG I) (1 member)
- Unknown (BZPRPG III) (1 member)
- Unknown Characters (BZPRPG III) (2 members)
- Unknown Elementals (BZPRPG) (1 member)
- Unknown Species (3 members)
- Unknown Species (BZPRPG) (4 members)
- Unknown Species (Bara Magna (Series)) (3 members)
- Up To Date (BZPRPG III Arc 3) (12 members)
- Ussalry (16 members)
- Valkyr (1 member)
- Valkyr (BZPRPG) (1 member)
- Vault Loot (2 members)
- Vector Art (4 members)
- Venom Elementals (A City Divided) (1 member)
- Visic (7 members)
- Vo-Toa (22 members)
- Vortixx (19 members)
- Vortixx (BZPRPG III) (7 members)
- Vortixx (NBZP) (5 members)
- Vyshanakan (BZPRPG) (4 members)
- Vyshanakan (BZPRPG I) (1 member)
- WIP (335 members)
- WIPInfobox (263 members)
- War for Elementum-Nui (6 members)
- Warrior (2 members)
- Wars (BZPRPG III) (1 member)
- Wasteland (1 member)
- Wastelands (Bara Magna (Series)) (5 members)
- Water Elementals (2 members)
- Water Elementals (BZPRPG) (2 members)
- Water Elementals (BZPRPG 2010) (1 member)
- Water Elementals (BZPRPG III) (8 members)
- Water Elementals (Bionicle Kingdoms I-IV) (1 member)
- Water Elementals (NBZP) (2 members)
- Water Elementals (New BZPRPG) (1 member)
- Water Elementals (The Gate) (1 member)
- Water Tribe (5 members)
- Weapons (6 members)
- Weapons (BK) (1 member)
- Weapons (BZPRPG) (8 members)
- Weapons (BZPRPG I) (1 member)
- Weapons (BZPRPG III) (3 members)
- Wiki Administration (4 members)
- Wiki Images (1 member)
- Willhammers (7 members)
- Xa-Koro (2 members)
- Zyglak (The Gate) (1 member)