| Abbreviation | Definition |
|---|---|
| MSMS | Muscle Shoals Middle School |
| MSNA | Missouri School Nutrition Association |
| MSOA | Mersey School Of Anaesthesia |
| MSOB | Mason School Of Business |
| MSOE | Milwaukee School Of Engineering |
| MSON | Malone School Online Network |
| MSOP | McWhorter School of Pharmacy |
| MSOP | Med School Objectives Project |
| MSOP | Memphis School of Preaching |
| MSOQ | Middle Schools Of Queensland |
| MSOQ | Montessori School Of Quincy |
| MSOR | Montessori School of Rome |
| MSOS | Marine Special Operations School |
| MSOW | Montessori School Of Washington |
| MSOW | Montessori School Of Waukesha |
| MSOX | Manfrotto School Of Xcellence |
| MSP | Middle School of Plainville |
| MSPA | Minnesota School |
| MSPE | Medical School Performance Evaluation |
| MSPF | Mexican School of Particles and Fields |