The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 100% completion (16 members)
- 2D Universe (8 members)
- 3D Universe (12 members)
- 3D file formats (6 members)
- A Superyacht Life mission strand (7 members)
- Abandoned Buildings (45 members)
- Abandoned locations (11 members)
- Abandoned structures (4 members)
- Accounting firms (1 member)
- Achievement navigation templates (6 members)
- Achievements and Trophies (11 members)
- Achievements and Trophies in GTA Chinatown Wars (9 members)
- Achievements and Trophies in GTA III (45 members)
- Achievements and Trophies in GTA IV (52 members)
- Achievements and Trophies in GTA Online (49 members)
- Achievements and Trophies in GTA San Andreas (55 members)
- Achievements and Trophies in GTA V (45 members)
- Achievements and Trophies in GTA VI (0 members)
- Achievements and Trophies in GTA Vice City (44 members)
- Achievements and Trophies in The Ballad of Gay Tony (11 members)
- Achievements and Trophies in The Lost and Damned (6 members)
- Action films (24 members)
- Activities (3 members)
- Actors (80 members)
- Actors in GTA 2: The Movie (2 members)
- Actors in The Gamechangers (17 members)
- Administrators (5 members)
- Ads (1 member)
- Adult films (30 members)
- Adult magazines (1 member)
- Adult store chains (8 members)
- Adult stores (1 member)
- Adversary Modes (47 members)
- Advocacy groups (8 members)
- Aerial tramways (2 members)
- African-American Gangs (22 members)
- African countries (12 members)
- Agent (13 members)
- Agricultural Companies (7 members)
- Agricultural vehicles (9 members)
- Air Races (48 members)
- Air transportation (4 members)
- Aircraft (9 members)
- Aircraft sizes in Hangars in GTA Online (4 members)
- Airliners (0 members)
- Airlines (30 members)
- Airplanes (35 members)
- Airplanes by style (7 members)
- Airport vehicles (11 members)
- Airports (16 members)