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- Macomb Public Schools, Macomb, Pottawatomie County
- Madill Public Schools, Madill, Marshall County
- Mangum Public Schools, Mangum, Greer County
- Mannford Public Schools, Mannford, Creek County
- Mannsville Public School, Mannsville, Johnston County
- Maple Public School, Calumet, Canadian County
- Marble City Public School, Marble City, Sequoyah County
- Marietta Public Schools, Marietta, Love County
- Marlow Public Schools, Marlow, Stephens County
- Maryetta Public School, Stilwell, Adair County
- Mason Public Schools, Mason, Okfuskee County
- Maud Public Schools, Maud, Pottawatomie County
- Maysville Public Schools, Maysville, Garvin County
- McAlester Public Schools, McAlester, Pittsburg County
- McCord Public School, Ponca City, Osage County
- McCurtain Public Schools, McCurtain, Haskell County
- McLoud Public Schools, McLoud, Pottawatomie County
- Medford Public Schools, Medford, Grant County
- Meeker Public Schools, Meeker, Lincoln County
- Merritt Public Schools, Elk City, Beckham County
- Miami Public Schools, Miami, Ottawa County
- Mid-Del School District, Midwest City, Oklahoma County
- Middleberg Public School, Blanchard, Grady County
- Midway Public Schools, Council Hill, McIntosh County
- Milburn Public Schools, Milburn, Johnston County
- Milfay Public School, Milfay, Creek County
- Mill Creek Public Schools, Mill Creek, Johnston County
- Millwood Public Schools, Oklahoma City, Oklahoma County
- Minco Public Schools, Minco, Grady County
- Moffett Public School, Moffett, Sequoyah County
- Monroe Public School, Monroe, Le Flore County
- Moore Public Schools, Moore, Cleveland County
- Mooreland Public Schools, Mooreland, Woodward County
- Morris Public Schools, Morris, Okmulgee County
- Morrison Public Schools, Morrison, Noble County
- Moseley Public School, Colcord, Delaware County
- Moss Public Schools, Holdenville, Hughes County
- Mounds Public Schools, Mounds, Creek County
- Mountain View-Gotebo Schools, Mountain View, Kiowa County
- Moyers Public Schools, Moyers, Pushmataha County
- Muldrow Public Schools, Muldrow, Sequoyah County
- Mulhall-Orlando Public Schools, Orlando, Logan County
- Muskogee Public Schools, Muskogee, Muskogee County
- Mustang Public Schools, Mustang, Canadian County
Read more about this topic: List Of School Districts In Oklahoma