| Abbreviation | Definition |
|---|---|
| UCW | University Committee on Women |
| UCWA | University Centre West Anglia |
| UCY | University of Cyprus |
| UD | University of Dallas |
| UD | University of Dayton |
| UD | University of Debrecen |
| UD | University of Delaware |
| UD | University of Detroit |
| UD | Unrestricted Donation |
| UDA | University Degrees Abroad |
| UDA | University Dental Associates |
| UDAA | University of Dallas Art Association |
| UDAB | University of Delaware Alternative Breaks |
| UDAC | University Developmental Assessment Center |
| UDAC | University Developmental Assessment Clinics |
| UDAC | University Diversity Action Council |
| UDAF | University of Delaware Athletic Fund |
| UDB | Universidad Don Bosco |
| UDC | University of the District of Columbia |
| UDCI | University of Dayton China Institute |