| Abbreviation | Definition |
|---|---|
| STR | Scuderia Toro Rosso |
| STRIP | Secret Training Race Informed Products |
| SUPR | Southern United Professional Racing |
| SUR | See Us Run |
| SVR | Special Vehicle Racing |
| SVR | Special Vehicles Racing |
| SVR | Super Veloce Racing |
| SVRA | Sportscar Vintage Racing Association |
| TAAD | Terrace Avenue Assessment District |
| TAAR | Trace amine associated receptor |
| TAAR | Trace amine associated receptors |
| TAFR | The Adventures of Frank Race |
| TAO | Trace Architecture Office |
| TARS | Traffic Avoidance Racing Simulator |
| TBGP | Tampa Bay Grand Prix |
| TBH | Tracey Brunstrom Hammond |
| TBR | Tommy Baldwin Racing |
| TBR | Twin Brother Racing |
| TBR | Two Brothers Racing |
| TBRA | Tennessee Bicycle Racing Association |