- Middleton
- Milton
- Monterey
- Malden
- Marblehead
- Marlborough
- Marshfield
- Marshfield Hills
- Marstons Mills
- Mashpee
- Mashpee Neck
- Manchaug
- Manchester
- Mattapan
- Menemsha
- Middleboro
- Middleborough Center
- Minot
- Mattapoisett
- Maynard
- Medfield
- Medway
- Mendon
- Merrimac
- Methuen
- Millbury
- Millers Falls
- Millis
- Monomoscoy Island
- Monson