| Abbreviation | Definition |
|---|---|
| USM | University of Southern Mississippi |
| USM | University School of Milwaukee |
| USM | University Science Malaysia |
| USM | University System of Maryland |
| USMA | United States Military Academy |
| USMI | United States Medicine Institute |
| USMI | University Sains Malaysia Internationals |
| USML | University of Saint Mary of the Lake |
| USMLE | United States Medical Licensing Examination |
| USMMA | United States Merchant Marine Academy |
| USMP | University System of Maryland Professional |
| USMS | University Scholarship Management System |
| USMS | University School of Management Studies |
| USMT | University of Spa Massage Therapy |
| USMU | Ural State Medical University |
| USN | Unified Student Number |
| USN | University of Southern Nevada |
| USN | University School of Nashville |
| USNA | United States Naval Academy |
| USNH | University System of New Hampshire |