| Abbreviation | Definition |
|---|---|
| RSR | Revolution Sim Racing |
| RSR | Road Street and Race |
| RSR | Ron Simons Racing |
| RT | Race Team |
| RT | Race Train |
| RT | Racing Training |
| RTCA | Race Track Chaplaincy of America |
| RTDS | Race Technical Difficulty Score |
| RTE | Racers To Extreme |
| RTEA | Reaching to Embrace Arts |
| RTI | Race Tuned Imports |
| RTI | Race-Tuned Import |
| RTN | Racetrack Television Network |
| RTP | Racers Theoretical Performance |
| RTR | Racing Throttle Response |
| RTR | Ready To Race |
| RTRT | Real Time Ray Tracing |
| RTT | Race to the Top |
| RTVM | Requirements Traceability Verification Matrix |
| RTW | Race The World |