| Mahanoy Area SD, PA (District) |
| Mahaska County, IA (ISD) |
| Mahnomen County, MN (ISD) |
| Mahnomen Public School District, MN (District) |
| Mahomet-Seymour CUSD 3, IL (District) |
| Mahoning County Career and Technical Center, OH (District) |
| Mahoning County High School, OH (PSA) |
| Mahoning County JVSD CTPD, OH (District) |
| Mahoning Unlimited Classroom, OH (PSA) |
| Mahopac Central School District, NY (District) |
| Mahtomedi Public School District, MN (District) |
| Mahwah Township Public Schools, NJ (District) |
| Main Preparatory Academy, OH (PSA) |
| Main Street School Performing Arts, MN (District) |
| Maine Academy Of Natural Sciences, ME (PSA) |
