| Country | Location |
| Malaysia | Southeastern Asia, peninsula bordering Thailand and northern one-third of the island of Borneo, bordering Indonesia, Brunei, and the South China Sea, south of Vietnam |
| Maldives | Southern Asia, group of atolls in the Indian Ocean, south-southwest of India |
| Mali | Western Africa, southwest of Algeria |
| Malta | Southern Europe, islands in the Mediterranean Sea, south of Sicily (Italy) |
| Marshall Islands |  Oceania, two archipelagic island chains of 29 atolls, each made up of many small islets, and five single islands in the North Pacific Ocean, about half way between Hawaii and Australia |
| Mauritania | Northern Africa, bordering the North Atlantic Ocean, between Senegal and Western Sahara |
| Mauritius | Southern Africa, island in the Indian Ocean, east of Madagascar |
| Mayotte |  Southern Indian Ocean, island in the Mozambique Channel, about half way between northern Madagascar and northern Mozambique |
| Mexico | Middle America, bordering the Caribbean Sea and the Gulf of Mexico, between Belize and the US and bordering the North Pacific Ocean, between Guatemala and the US |
| Micronesia, Federated States of | Oceania, island group in the North Pacific Ocean, about three-quarters of the way from Hawaii to Indonesia |
| Moldova | Eastern Europe, northeast of Romania |
| Monaco | Western Europe, bordering the Mediterranean Sea on the southern coast of France, near the border with Italy |
| Mongolia | Northern Asia, between China and Russia |
| Montenegro | Southeastern Europe, between the Adriatic Sea and Serbia |
| Montserrat | Caribbean, island in the Caribbean Sea, southeast of Puerto Rico |
| Morocco | Northern Africa, bordering the North Atlantic Ocean and the Mediterranean Sea, between Algeria and Western Sahara |
| Mozambique | Southeastern Africa, bordering the Mozambique Channel, between South Africa and Tanzania |
| Namibia | Southern Africa, bordering the South Atlantic Ocean, between Angola and South Africa |
| Nauru | Oceania, island in the South Pacific Ocean, south of the Marshall Islands |
| Navassa Island | Caribbean, island in the Caribbean Sea, 35 miles west of Tiburon Peninsula of Haiti |
| Nepal | Southern Asia, between China and India |