| Mountainville Academy, UT (PSA) |
| Mountrail County, ND (ISD) |
| Mower County, MN (ISD) |
| Moyer (Maurice J.) Academy, DE (PSA) |
| Moyers, OK (District) |
| Ms Sch For Math And Sc, MS (District) |
| Ms Sch For The Blind, MS (District) |
| Ms School For The Arts, MS (District) |
| Ms School For The Deaf, MS (District) |
| Msad 10, ME (District) |
| Msad 27, ME (District) |
| Msad 46, ME (District) |
| Msad 76, ME (District) |
| Mt Angel Sd 91, OR (District) |
| Mt Desert Csd, ME (District) |
