- Macedon Center
- Machias
- Machias Junction
- Mackey
- Madawaska
- Madison Center
- Madrid
- Madrid Springs
- Magdalen Island
- Magee
- Magnolia
- Mahopac Falls
- Mahopac Mines
- Maiden Lane Mobile Home Park
- Maidstone Park
- Main Settlement
- Maine
- Maine Mobile Park
- Malba
- Malcon
- Malden Bridge
- Malden-on-Hudson
- Mallory
- Mallory Corner
- Mallory Island
- Malomar Island
- Malone Junction
- Maloney Island
- Malta
- Malta Gardens