| Abbreviation | Definition |
|---|---|
| USHJA | United States Hunter Jumper Association |
| USMI | United States Medicine Institute |
| USMLE | United States Medical Licensing Examination |
| USNL | United States Navy League (usually seen as NLUS) |
| USPA | United States Pilots Association |
| USPE | Utah Society of Professional Engineers |
| USPEA | United States Poultry and Egg Association |
| USSA | United States Student Association |
| USSA | Us Ski And Snowboard Association |
| USSAF | United States Student Association Foundation |
| USS-AMMLA | United Seamen's Service - American Merchant Marine Library Association |
| USTA | A Universal State Tennis Association |
| USTA | United States Telecom Association |
| USTFA | United States Trout Farmers Association |
| USTOA | United States Tour Operators Association |
| UTC | Utilities Telecom Council |
| UTIC | Utah Technology Industry Council |
| UTID | Union of businessmen of Uzbekistan and Turkey |
| UTMA | Universal Transportable Memory Association |
| UTMA | Utah Trail Machine Association |