| Abbreviation | Definition |
|---|---|
| ULURP | Uniform Land Use Review Procedure |
| UMB | Upper Mink Brook |
| UMF | Undersecretary for Management and Finance |
| UMPA | Urban Ministry of Palo Alto |
| UMPA | Utah Municipal Power Agency |
| UMPM | Utah Medicaid Provider Manual |
| UMR | Upper Midwest Region |
| UMTA | Urban Mass Transportation Administration |
| UN | United Nation |
| UNICOR | United Nations Industries Corporation |
| UNSF | Urban National Sampling Frame |
| UNY | Upstate New York |
| UOL | Utah Open Lands |
| UOS | United Offshore Services |
| UP | Upper Peninsula |
| UPC | Uniform Plimbing Code |
| UPCC | University Park Community Council |
| UPDF | Uganda People’s Defense Force |
| UPDF | Uganda Peoples Defense Force |
| UPER | Someone from the Michigan Upper Peninsula |