Ohio Neighborhoods M
- Madison Mills
- Madisonville
- Maize-Morse
- Malvern-Mercer
- Marble Cliff Crossing
- McCook Field
- McGuffey Heights
- McPherson
- Medway/Enon
- Merion Village
- Merriman Valley
- Meyers Lake
- Miamisburg/Moraine
- Middlebury
- Midtown Cleveland
- Midtown Dayton
- Milbrook
- Mill Run
- Milo-Grogan
- Monfort Heights East
- Montgomery
- Monticello-Noble
- Mount Adams
- Mount Airy
- Mount Auburn
- Mount Carmel
- Mount Healthy Heights
- Mount Lookout
- Mount Pleasant
- Mount Vernon
- Mount Vernon