| Abbreviation | Definition |
|---|---|
| UM | University of Maryland |
| UM | University of Miami, Florida |
| UM | University of Michigan |
| UM | University of Minho |
| UM | University of Mobile |
| UMA | University Medical Associates |
| UMA | University of Maine at |
| UMA | University of Maine at Augusta |
| UMA | University of Mohaghegh Ardabili |
| UMAB | University Of Maryland At Baltimore |
| UMAB | University of Miami Alternative Breaks |
| UMAD | University of Memphis Athletic Department |
| UMAP | University Mobility in Asia and Pacific |
| UMAP | University Mobility in Asia and the Pacific |
| UMAP | University of Missouri Assistance Program |
| UMass | University of Massachusetts |
| UMAT | University of Mines and Technology |
| UMATS | University of Maryland Academic Telecommunication System |
| UMB | University of Maryland Baltimore |
| UMB | University of Maryland BioPark |