| Abbreviation | Definition |
|---|---|
| RGIC | Responsible Gaming Information Centre |
| RGM | Random Gaming Moment |
| RGM | Random Gaming Moments |
| RGM | Rosewill Gaming Mice |
| RGN | Rapture Gaming Network |
| RGN | Riot Games Network |
| RGN | Riot Gaming News |
| RGV | Random Gaming Videos |
| RGW | Russian Gaming Week |
| RHS | ROBLOX High School |
| RI8 | Restricted Instance 8 |
| RITO | Reducing Irelia Over Time |
| RK9 | Arcanine |
| RL | Roguelike |
| RLS | Real-Life Server |
| RMG | Real Money Gambling |
| ROD | Record Of Disgrace |
| ROFL | Rogues Of the Forbidden Legion |
| ROG | Reign of Gaming |
| ROG | Republic Of Gamer |