- Maui, Hawaiian Windward Islands, Hawaiian Islands2
- Mazatenango, Suchitepequez, Guatemala4
- Mbulu District, Tanzania2
- McKinley County, New Mexico8
- Mechlin, Flanders, Belgium7
- Mediterranean region, Turkey1
- Melanesia172
- Mendocino County, California106
- Mercado Central de Huaraz, Huaraz, Peru2
- Mesa Grande, San Diego County, California1
- Mesalit, Darfur province, Sudan1
- Metepec, State of Mexico, Mexico2
- Mexico50
- Michoacán, Mexico3
- Micronesia19
- Middle East41
- Middle Sepik river, East Sepik Province, Momase Region1
- Milan, Northern Italy3
- Minamiaizu District, Fukushima Prefecture, South Tohoku4
- Mindanao Island, Mindanao island group, Philippines10