| Abbreviation | Definition |
|---|---|
| UMB | University of Massachusetts Boston |
| UMB | University of Michigan Band |
| UMBA | University of Massachusetts Building Authority |
| UMBC | University of Maryland Baltimore County |
| UMBC | University of Maryland Bella Campus |
| UMBC | University of Maryland, Baltimore County |
| UMBER | University of Manchester Bioinformatics Education and Research |
| UMBFS | University of Mississippi Biological Field Station (northeast of Oxford, Mississippi) |
| UMBI | University of Maryland Biotechnology Institute |
| UMBS | University of Michigan Biological Station |
| UMBS | University of Michigan Biological Station's |
| UMC | University Mail Code |
| UMC | University Medical Center |
| UMC | University Memorial Center |
| UMC | University of Minnesota Crookston |
| UMCA | Universities Mission to Central Africa |
| UMCA | Universities' Mission to Central Africa |
| UMCB | University Medical Center Brackenridge (Austin, TX) |
| UMCc | Union Management Committee |
| UMCC | University of Michigan Computing Club |