| Abbreviation | Definition |
|---|---|
| SRT | Sports Racing Technology |
| SRT | Street & Racing Technology |
| SRT | Street and Racing Technology |
| SRT | Street Race Technology |
| SRT | Street Racing and Technology |
| SRT | Street Racing and Track |
| SRT | Street Racing Technology |
| SRT | Street Racing Tiburon |
| SRW | Sellers Race Wings |
| SSR | Speed Star Racing |
| SSR | Stop Street Racing |
| SSR | Super Stomp Racing |
| SSRA | Spokane Ski Racing Association |
| SSRA | Straightline Snowmobile Racing Associate |
| STAN | System Trace Audit Number |
| STERLING | Strength Technique Energy Rhythm Love Innovation Nerve Grace |
| STK | Stakes Race |
| STMH | Stirling Terrace Mess Hall |
| STORM | Scorched Treads Obsessive Race Modification |
| STORM | Short Track Outreach Racing Ministry |