| City | Administrative Division | Country | |
| Mumbai | - | India | |
| Munich | - | Germany | |
| Munich | Bavaria | Germany | |
| Munroe Falls | Ohio | United States | |
| Munster | Indiana | United States | |
| Münstertal | Baden-Württemberg | Germany | |
| Murfreesboro | Tennessee | United States | |
| Murnau am Staffelsee | Bavaria | Germany | |
| Murrells Inlet | South Carolina | United States | |
| Murrieta | California | United States | |
| Muscat | Masqat | Oman | |
| Muskegon | Michigan | United States | |
| Muskoka | Ontario | Canada | |
| Musselburgh | Scotland | United Kingdom | |
| Mustique Island | Grenadines | St. Vincent and the Grenadines | |
| Mykonos | Mykonos | Greece | |
| Myrtle Beach | South Carolina | United States | |
| Myrtleford | Victoria | Australia | |
| Mystic | Connecticut | United States | |
