| Abbreviation | Definition |
|---|---|
| USB | Uplifting Speaker Bass |
| USCGB | United States Coast Guard Bibliography |
| USF | Ultra Sound Format |
| USM | Useful Social Media |
| USNW | U.S. News & World Report Magazine |
| UST | Unbiased Suspense Tactic |
| USTV-8 | University Square Television-8 |
| UT | Unauthorized Translation |
| UT | Uncertain Text |
| UT | Unfinished Tales |
| UT | Unfinished Thought |
| UT | Universal Time (replaced GMT in 1928) |
| UT | Unlimited Talent |
| UT | Unreleased Track |
| UT | Utopia Times |
| UTN | Universal Talk Network |
| UTN | Universal Television Networks |
| UTN | Urdu Television Network |
| UTTM | Up To The Minute |
| UTV | Ulster Television, Plc. |