| Marked Tree School District, AR (District) |
| Markesan School District, WI (District) |
| Marlboro 01, SC (District) |
| Marlboro Central School District, NY (District) |
| Marlboro County, SC (ISD) |
| MARLBORO TOWNSHIP BOARD OF EDUCATION, NJ (District) |
| Marlborough, MA (District) |
| Marlborough School District, NH (District) |
| Marlborough School District, CT (District) |
| Marlette Community Schools, MI (District) |
| Marlin ISD, TX (District) |
| Marlington Local School District, OH (District) |
| Marlow, OK (District) |
| Marlow School District, NH (District) |
| Marmaduke School District, AR (District) |
