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- McDonough (Chenango County)
- Macedon (Wayne County)
- Machias (Cattaraugus County)
- Macomb (St. Lawrence County)
- Madison (Madison County)
- Madrid (St. Lawrence County)
- Maine (Broome County)
- Malone (Franklin County)
- Malta (Saratoga County)
- Mamakating (Sullivan County)
- Mamaroneck (Westchester County)
- Manchester (Ontario County)
- Manheim (Herkimer County)
- Manlius (Onondaga County)
- Mansfield (Cattaraugus County)
- Marathon (Cortland County)
- Marbletown (Ulster County)
- Marcellus (Onondaga County)
- Marcy (Oneida County)
- Marilla (Erie County)
- Marion (Wayne County)
- Marlborough (Ulster County)
- Marshall (Oneida County)
- Martinsburg (Lewis County)
- Maryland (Otsego County)
- Masonville (Delaware County)
- Massena (St. Lawrence County)
- Mayfield (Fulton County)
- Mendon (Monroe County)
- Mentz (Cayuga County)
- Meredith (Delaware County)
- Mexico (Oswego County)
- Middleburgh (Schoharie County)
- Middlebury (Wyoming County)
- Middlefield (Otsego County)
- Middlesex (Yates County)
- Middletown (Delaware County)
- Milan (Dutchess County)
- Milford (Otsego County)
- Milo (Yates County)
- Milton (Saratoga County)
- Mina (Chautauqua County)
- Minden (Montgomery County)
- Minerva (Essex County)
- Minetto (Oswego County)
- Minisink (Orange County)
- Mohawk (Montgomery County)
- Moira (Franklin County)
- Monroe (Orange County)
- Montague (Lewis County)
- Montezuma (Cayuga County)
- Montgomery (Orange County)
- Montour (Schuyler County)
- Mooers (Clinton County)
- Moravia (Cayuga County)
- Moreau (Saratoga County)
- Morehouse (Hamilton County)
- Moriah (Essex County)
- Morris (Otsego County)
- Morristown (St. Lawrence County)
- Mount Hope (Orange County)
- Mount Kisco (Westchester County)
- Mount Morris (Livingston County)
- Mount Pleasant (Westchester County)
- Murray (Orleans County)
Read more about this topic: List Of Towns In New York