The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Phoenix: Rettenjo (17 members)
- Pins (25 members)
- Platinum the Trinity (768 members)
- Playable Characters (35 members)
- Portraits (770 members)
- Postcards (21 members)
- Posters (30 members)
- Powers, Techniques, and Abilities (1 member)
- Praetorian Guard (1 member)
- Pre-order Bonuses (151 members)
- Prime Field Devices (12 members)
- Prime Field Interference Manifestations (4 members)
- Promotional Artwork (119 members)
- Protagonist (BBDW) (1 member)
- Puppeteers Characters (1 member)
- Purgatorium (23 members)
- Purgatory hell Characters (2 members)
- Quotes Subpage (182 members)
- Quotes Templates (6 members)
- RWBY Locations (1 member)
- Raabe (10 members)
- Rachel Alucard (910 members)
- Radio: XBlaze (26 members)
- Radio Shows (2 members)
- Ragna the Bloodedge (2,585 members)
- Rail Station (9 members)
- Raquel Alucard (182 members)
- Re:idol (6 members)
- Regions (2 members)
- Rei (2 members)
- Religion (1 member)
- Relius Clover (535 members)
- Remix Heart Characters (26 members)
- Revolution Reburning Characters (24 members)
- Rin Hazuki (6 members)
- Ring (0 members)
- Ringo Akagi (175 members)
- Ripper (183 members)
- Riverside Space (0 members)
- Road of Glacier (2 members)
- Roningai (12 members)
- Ruby Rose (87 members)
- Ryoko Kagari (0 members)
- Ryouko Kagari (8 members)
- Sacrifice (2 members)
- Sakamura, Hidehiko (2 members)
- Sakuraba, Haruka (15 members)
- Sankishin (6 members)
- Sankishin Wielders (7 members)
- Sato, Georgie (11 members)