| Abbreviation | Definition |
|---|---|
| UEF | Unified Emulator Format |
| UEH | Unified Error Handler |
| UEIF | Unified Extensible Firmware Interface |
| UEK | UltraView Expansion Kit |
| UEL | Universal Exit Language |
| UFAB | User Friendly Applications for Builders |
| UFFI | Universal Foreign Function Interface |
| UFI | Uni For Industry |
| UFL | Universal Font Library |
| UFL | User Function Library |
| UFO | Unidentified Function Of .... |
| UFO | Universal Format Outputter |
| UFQ | Usability Functionality and Quality |
| UFS | Universal Flash Software |
| UG | Universal Grammar |
| UG | User Goal |
| UGC | Unix Games Composer |
| UGE | Universal Game Editor |
| UGI | Universal Gsm Interface |
| UGIT | Univariate Generic Imputation Tool |