- Minnie Island
- Minortown
- Miramichi
- Miry Brook
- Mitcheltown
- Mixville
- Mobile Medical Unit
- Mohegan
- Momauguin
- Money Island
- Monroe
- Montowese
- Moon Rock
- Mooreville
- Morgan Fair Corners
- Morningside
- Morningside Park
- Morris
- Morris Cove
- Mount Carmel
- Mount Carmel Center
- Mount Hope
- Mount Parnassus
- Mountaincrest
- Mouse Island
- Mudgetown
- Murray
- Myrtle Beach
- Mystic Seaport
- Madison Center