- Mason Island
- MacIntyre
- Mackville
- Maidstone
- Malletts Bay
- Manchester
- Manchester Center
- Manchester Depot
- Maple Corner
- Maquam
- Marble Island
- Marlboro
- Marolin Acres
- Marshfield
- McIndoe Falls
- Meach Island
- Mechanicsville
- Medburyville
- Melville Landing
- Mendon
- Merrill Corner
- Metcalfe Island
- Michigan
- Middlebury
- Middlebury College Snow Bowl
- Middlebury (village)
- Middlesex
- Middletown
- Middletown Springs
- Miles Pond