M.Ma
- Mata Ortiz, Chihuahua, Mexico
- Matara, Sri Lanka
- Matiari, Sindh, Pakistan
- Mato Grosso, Brazil
- Matsqui, British Columbia, Canada
- Matsue, Shimane, Japan
- Maule, Chile
- Maun, North West, Botswana
- Mauritania
- Mayne Island, British Columbia, Canada
- Mazalij 1, Saudi Arabia
- Mazalij 3, Saudi Arabia
- Mazalij 4, Saudi Arabia
- Mazalij 5, Saudi Arabia
- Mazar-i-Sharif, Balkh, Afghanistan
- Mazateca, Oaxaca, Mexico
- Mazes, Viseu, Portugal
Mc
- McAdam Crek, British Columbia, Canada
- McCallum Site, British Columbia, Canada
- McCartney Creek, British Columbia, Canada
- McCartney Creek, Canada, British Columbia, Canada
- McLeod, Alberta, Canada
- McNicol, British Columbia, Canada
- McPhee Site, British Columbia, Canada
Me
- Meads, Sussex, England
- Mecklenburg, Germany
- Meghalaya, India
- Mek, Papua, Indonesia
- Mekoryuk, Alaska, USA
- Mengze, Yunnan, China
- Merritt, British Columbia, Canada
- Mersin, Turkey
- Metcalf Bay, British Columbia, Canada
- Metchosin, British Columbia, Canada
- Metepec, Mexico
- Metiq, Sanikiluaq, Quebec, Canada
- Metlahkatla, British Columbia, Canada
- Metlakatla, Alaska, USA
- Metlakatla, Annette Island, Alaska, USA
- Metlakatla, Annette Island, Clarence Sound, Alaska, USA
- Metlakatla, British Columbia, Canada
- Metlakatla, Northern Coast, British Columbia, Canada
- Metlakatla, Prince of Wales-Outer Ketchikan Division, Alaska, USA
- Metlakatla Pass, British Columbia, Canada
- Meurthe-Et-Moselle, France
- Mexico
- Mexico City, Federal District, Mexico
- Mexico City, Mexico
Mi
- Miagao, Iliolo, Philippines
- Mianzhu, Sichuan, China
- Mica Creek Dam Project Site, British Columbia, Canada
- Michigan, USA
- Michoacan, Mexico
- Middle Mountain Site, British Columbia, Canada
- Middle Savage Island, Canada
- Midland, Texas, USA
- Midnapur, West Bengal, India
- Mie, Japan
- Mike Victor's, British Columbia, Canada
- Mike Victor's Fish Camp, British Columbia, Canada
- Mikunau, Gilbert Group, Kiribati
- Mile 34 Site, British Columbia, Canada
- Milingimbi, Northern Territory, Australia
- Mill Bay, British Columbia, Canada
- Milliken, British Columbia, Canada
- Milne Bay, Papua New Guinea
- Milton-Freewater, Oregon, USA
- Milwaukee, Wisconsin, USA
- Mimbres, New Mexico, USA
- Mimbres Valley, New Mexico, USA
- Mimutsu-Machi, Miyazaki, Japan
- Mindanao, Philippines
- Mindoro, Philippines
- Mini Thni, Alberta, Canada
- Minnesota, USA
- Mino-Shi, Gifu, Japan
- Minto, Alaska, USA
- Mira, Coimbra, Portugal
- Misc. Britain, Scotland
- Miscellaneous, Denmark
- Miscellaneous, Dordogne, France
- Miscellaneous, France
- Miscellaneous, Kent, England
- Miscellaneous, Mexico
- Mission, British Columbia, Canada
- Mississippi, USA
- Missouri, USA
- Misui-Machi, Shimane, Japan
- Misumi, Shimane, Japan
- Misumi-Machi, Shimane, Japan
- Mithila, Bihar, India
- Mito, Japan
- Mitoya-Machi, Shimane, Japan
- Miyagi, Japan
- Miyaji-Machi, Kumamoto, Japan
- Miyako, Okinawa, Japan
- Miyakonojo-Shi, Miyazaki, Japan
- Miyama, Yamagata, Japan
- Miyamada, Fukushima, Japan