- Malden
- Manchaug
- Manchester
- Manomet
- Mansfield
- Marblehead
- Marion
- Marlboro
- Marlborough
- Marshfield
- Marshfield Hills
- Marston Mills
- Marstons Mills
- Mashpee
- Mattapan
- Mattapoisett
- Maynard
- Medfield
- Medford
- Medway
- Melrose
- Mendon
- Menemsha
- Merrimac
- Methuen
- Middleboro
- Middlefield
- Middleton
- Middleton,
- Milford
- Mill River
- Millbury
- Millers Falls
- Millis
- Millville
- Milton
- Monponsett
- Monroe Bridge
- Monson
- Montague
- Monterey
- Monument Beach
- Mt Washington