| Abbreviation | Definition |
|---|---|
| USDOJ | United States Department of Justice |
| USLW | United States Law Week |
| USM | Underground Spot Mafia |
| USP | United States Penitentiary |
| USP | United States Prisons |
| USP | Universal Self-reloading Pistol |
| USP | Universale Selbstlade Pistole |
| USRQ | United States Register Quarterly |
| USSC | United States Sentencing Commission |
| USWA | United States Warehouse Act |
| UT | Ultimate Trooper |
| UTB | UTah Bankruptcy Court District |
| UTG | Under The Gun |
| UTI | Under The Influence |
| UTL | Utility Tactical Light |
| UTLA | Utah Trial Lawyers Association |
| UTMA | Uniform Transfer to Minors Act |
| UUW | Unlawful Use of Weapon |
| UVC | Usa Vs Clinton |
| UVE | Use of Videotape Equipment to Record Court Proceedings (court rules) |