| Abbreviation | Definition |
|---|---|
| TRJ | Training Plan - Job specific |
| TROPUS | TRavel Of the President of the United States |
| TRP | Treasury Recovery Probability |
| TRPA | Terrorism Risk Protection Act |
| TRQ | Tariff Rate Quota |
| TRS | Technical Report Series |
| TRT | Thermal Remediation Technologies |
| TRUMP | Terrible Racist Unqualified Misogynistic President |
| TRUMP | Totally Ruthless Underminding Mental Psychopath |
| TS | Tentative Solution |
| TSA | Transportation Security Administration |
| TSAA | Test Site Administration Agreement |
| TSCA | Toxic Substances Control Acts |
| TSgt | Technical Sergeant - USAF |
| TSH | Thrift Savings Hell |
| TSI | Transportation Safety Institute |
| TSM | Travel Single Male |
| TSO | Taxpayer Service Office |
| TSO | TRICARE Support Office |
| TSOB | Transportation Security Oversight Board |