| Abbreviation | Definition |
|---|---|
| MMS | Memorial Middle School |
| MMS | Modern Montessori School |
| MMSC | Mohammadpur Model School & College |
| MMSI | Managing Microsoft School Infrastructures |
| MMSK | Montessori Middle School of Kentucky |
| MMSM | metro moncton school of music |
| MMSR | Maryland Model for School Readiness |
| MMUSD | Mount Mansfield Union School District |
| MNCS | Minnesota New Country School |
| MNES | Moss Nuckols Elementary School |
| MNHS | Mag-aba National High School |
| MNHS | Malinta National High School |
| MNHS | Marple Newtown High School |
| MNHS | McKinney North High School |
| MNHS | Millard North High School |
| MNHS | Moonwalk National High School |
| MNM | Much Needed Motivation |
| MNPS | Metro Nashville Public School |
| MNPS | Metro Nashville Public Schools |
| MNPS | Metropolitan Nashville Public Schools |