- Masury
- Mathers Mills
- Matthews Trailer Park
- Matville
- Maud
- Maumee
- Maumee Valley Mobile Home Park
- Maurer Trailer Park
- Maurers Mobile Home Court
- Maustown
- Maxatawney Subdivision
- Maximo
- Maxville
- May Hill
- Maybee
- Mayfair East
- Mayfair Estates
- Mayfair Heights
- Mayfair Park
- Mayfield
- Mayfield Heights
- Mayfield Mobile Home Park
- Mayflower Village
- Maynard
- Maysville
- Maysville
- Maysville
- Maysville
- Maysville
- McArthur