| Abbreviation | Definition |
|---|---|
| TROF | Tobacco Region Opportunity Fund |
| TRPA | Tahoe Regional Planning Agency |
| TRS | Texas Rising Star |
| TRS | Township, Range, Section |
| TRS | Traditional Registration System |
| TS | Transmitter Square |
| TSBP | Texas State Board of Pharmacy |
| TSCC | Tax Supervising and Conservation Commission |
| TSD | Technical Studies Directorate |
| TSIA | Texas Success Initiative Assessment |
| TSL | Texas State Library |
| TSLAC | Texas State Library and Archives Commission |
| TSP | Transition to Support Program |
| TSPCB | Texas Structural Pest Control Board |
| TSRS | Tucson Supplemental Retirement System |
| TSSA | Technical Standards and Safety Authority (Ontario) |
| TSSEA | Towing and Storage Safety and Enforcement Act |
| TSTG | Texas State Tuition Grant |
| TTW | Ticket To Work |
| TUC | TUCson, Arizona |