| Abbreviation | Definition |
|---|---|
| MSTA | Municipal School Transportation Assistance |
| MSTF | Medical School Teaching Facility |
| MSTM | Martensdale-ST. Marys Community School District |
| MSTP | Multiple Subjects Teacher Preparation |
| MSTSC | Maximum Style Tec School of Cosmetology |
| MSU | Multiple School Unit |
| MSVA | Manukau School of Visual Arts |
| MSWP | Montessori School of Washington Park |
| MSYG | Middle School Youth Group |
| MSYM | Middle School Youth Ministry |
| MSZS | Miejski Szkolny Zwiazek Sportowy (Polish: Urban School Sports Association) |
| MTCS | Minnesota Transitions Charter Schools |
| MTDS | Mississippi Truck Driving School |
| MTES | Mansfield Township Schools |
| MTHS | Manchester Twp High School |
| MTHS | Manheim Township High School |
| MTHS | McKinley Technology High School |
| MTHS | Metamora Township High School |
| MTHS | Monroe Township High School |
| MTHS | Monterey Trail High School |