| Abbreviation | Definition |
|---|---|
| UT | User Time |
| UTB | Under The Bed |
| UTG | Universal Time-code Generator |
| UTI | User Task Interface |
| UTK | Universal Tool Kit |
| UTL | Universal Text Linking |
| UTL | Upnp Template Language |
| UTM | Universal Transverse Mercator |
| UTOC | User Table Of Contents |
| UTR | Unicode Technical Report |
| UTS | Unix Timesharing Service |
| UUA | Unisys Users Association |
| UUE | Unix-to-Unix Encoding |
| UUG | UNIFACE User Group |
| UUG | Unix Users Group |
| UUM | Unix Users of Minnesota |
| UVE | Used Video Equipment |
| UVE | User Virtual Environment |
| UVL | User Volume Label |
| UVN | Universal Virtual Memory |