| Marmarth 12, ND (District) |
| Marmaton Valley, KS (District) |
| Marmot Schools, ND (District) |
| Maroa Forsyth CUSD 2, IL (District) |
| Marple Newtown SD, PA (District) |
| Marquand-Zion R-Vi, MO (District) |
| Marquardt SD 15, IL (District) |
| Marquette, WI (ISD) |
| Marquette Area Public Schools, MI (District) |
| Marquette-Alger RESA, MI (ISD) |
| Mars Area SD, PA (District) |
| Marseilles ESD 150, IL (District) |
| Marsh Valley Joint District, ID (District) |
| Marshall, MO (District) |
| Marshall Academy, MI (PSA) |
