- Mathews, North Dakota
- Matthews, North Carolina
- Mattoon, Illinois
- Maui, Hawaii
- Maumee, Ohio
- Maumelle, Arkansas
- Mayfield, Kentucky
- Maysville, Kentucky
- McAllen, Texas
- McCalla, Alabama
- McComb, Mississippi
- McCook, Illinois
- McDonough, Georgia
- McGregor, Texas
- McKenzie, Tennessee
- McKinney, Texas
- McLean, Virginia
- Medford, Massachusetts
- Medina, Tennessee
- Melbourne, Florida
- Memphis, Tennessee
- Menlo Park, California
- Menomonie, Wisconsin
- Mentone, Alabama
- Meridian, Idaho
- Merrillville, Indiana
- Mesa, Arizona
- Mesquite, Texas
- Metairie, Louisiana
- Miami Beach, Florida
- Miami, Florida
- Miamisburg, Ohio
- Middleburg, Florida
- Middleburg, Virginia
- Middlebury, Indiana
- Middletown, Connecticut
- Middletown, Delaware
- Middletown, Rhode Island
- Middleville, Michigan
- Midland, Texas
