| Abbreviation | Definition |
|---|---|
| UPT | Ultimate Power Trading |
| UPW | United Public Workers |
| UQC | Unacceptable Quality Control |
| UQC | Union Quality Coordinator |
| UQE | Unacceptable Quality Evaluation |
| UQI | Unacceptable Quality Inspection |
| UQM | Unacceptable Quality Management |
| UQP | Unacceptable Quality Procedures |
| UQT | User's Question Time |
| UQTSP | UPOS Quick Tech Support Plan |
| UQU | Unknown QUantity |
| UQY | Ultimate Quality and Yield |
| UR | Upstream Return |
| UR(s) | Utilization Rate(s) |
| URC | Upstream Research Company |
| URI | Unknown Resource Informant |
| URL | Uniform Requirement Location |
| URM | Under Recruited Minority |
| URM | Under Represented Minority |
| URPCOV | United Repair Programs COVerage |