| Abbreviation | Definition |
|---|---|
| MSAM | Middle School Arts Magnet |
| MSAP | Middle School for Art and Philosophy |
| MSAP | Middle Schools Athletic Program |
| MSAR | Medical School Admission Requirements |
| MSAT | Marin School of Arts and Technology |
| MSB | Mediterranean School of Business |
| MSB | Missouri School for the Blind |
| MSB | Missouri School of the Blind |
| MSB | Montessori School of Beaverton |
| MSBA | Massachusetts School Building Authority |
| MSBA | Massachusetts School Buildings Association |
| MSBA | Minnesota School Boards Association |
| MSBC | Memorial School Building Committee |
| MSBD | Master School Board Director |
| MSBD | Middle School Band Director |
| MSBG | Montessori School of Bowling Green |
| MSBK | Modern School, Barakhamba Road |
| MSBO | Michigan School Business Officials |
| MSCC | Michigan School of Canine Cosmetology |
| MSCC | Middle School Cadet Corps |