The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Project Justice (1,397 members)
- Project Plus (1 member)
- Pullum (1 member)
- Pyron (10 members)
- Q (50 members)
- Quan Chi (9 members)
- R.Mika (27 members)
- Rabbit (69 members)
- Rachel (2 members)
- Radiant Entertainment (1 member)
- Rage of the Dragons (658 members)
- Rai-On (1 member)
- Raiden (7 members)
- Raidou (2 members)
- Rain (53 members)
- Ralf Jones (5 members)
- Rambo (90 members)
- Ramon (1 member)
- Ran Hibiki (50 members)
- Ranma CRH (28 members)
- Rashid (76 members)
- Raven (7 members)
- Real Bout Fatal Fury (53 members)
- Real Bout Fatal Fury 2 (24 members)
- Real Bout Fatal Fury Special (291 members)
- Real Bout Fatal Fury Special characters (2 members)
- Real Bout Special Andy Bogard (55 members)
- Real Bout Special Billy Kane (5 members)
- Real Bout Special Blue Mary (1 member)
- Real Bout Special Bob Wilson (1 member)
- Real Bout Special EX Andy Bogard (1 member)
- Real Bout Special EX Billy Kane (1 member)
- Real Bout Special EX Tung Fu Rue (1 member)
- Real Bout Special Geese Howard (1 member)
- Real Bout Special Hon Fu (1 member)
- Real Bout Special Jin Chonrei (1 member)
- Real Bout Special Jin Chonshu (1 member)
- Real Bout Special Joe Higashi (1 member)
- Real Bout Special Kim Kaphwan (1 member)
- Real Bout Special Ryuji Yamazaki (1 member)
- Real Bout Special Sokaku Mochizuki (1 member)
- Real Bout Special Terry Bogard (1 member)
- Real Bout Special Tung Fu Rue (1 member)
- Real Bout Special Wolfgang Krauser (1 member)
- Reiko (4 members)
- Remy (50 members)
- Reptile (2 members)
- Rig (2 members)
- Ring of Destruction: Slam Masters II (15 members)
- Rising Thunder: Community Edition (32 members)