| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Manton | city | Rhode Island | United States | 41.83639 | -71.46889 | 85 | 137836 |
| Manville | city | Rhode Island | United States | 41.96972 | -71.47417 | 160 | 61763 |
| Mapleville | city | Rhode Island | United States | 41.94806 | -71.64917 | 324 | 13156 |
| Marieville | city | Rhode Island | United States | 41.86833 | -71.43444 | 98 | 230246 |
| Matunuck | city | Rhode Island | United States | 41.37833 | -71.54639 | 0 | 10008 |
| Maxfields Corner | city | Rhode Island | United States | 41.73556 | -71.27056 | 3 | 46719 |
| McGowan Corners | city | Rhode Island | United States | 41.37889 | -71.76222 | 101 | 19749 |
| Meadow View | city | Rhode Island | United States | 41.69306 | -71.3875 | 98 | 58428 |
| Melville | city | Rhode Island | United States | 41.58694 | -71.28389 | 104 | 17197 |
| Merino | city | Rhode Island | United States | 41.82111 | -71.46528 | 59 | 173760 |
| Meshanticut | city | Rhode Island | United States | 41.76667 | -71.46944 | 98 | 133800 |
| Middletown | city | Rhode Island | United States | 41.54556 | -71.29194 | 141 | 27246 |
| Millville | city | Rhode Island | United States | 41.57417 | -71.6825 | 272 | 5066 |
| Misquamicut | city | Rhode Island | United States | 41.32222 | -71.81667 | 3 | 13836 |
| Mohegan | city | Rhode Island | United States | 41.98583 | -71.62306 | 301 | 14907 |
| Monastery Heights | city | Rhode Island | United States | 41.93611 | -71.39917 | 219 | 89755 |
| Montop historical | city | Rhode Island | United States | 41.67361 | -71.24028 | 98 | 63238 |
| Mooresfield | city | Rhode Island | United States | 41.49056 | -71.48833 | 98 | 26231 |
| Moosehorn Corner | city | Rhode Island | United States | 41.65333 | -71.54306 | 324 | 31684 |
| Moosup Valley | city | Rhode Island | United States | 41.73694 | -71.76111 | 423 | 3621 |
| Moscow | city | Rhode Island | United States | 41.52278 | -71.74194 | 200 | 6386 |
| Mount View | city | Rhode Island | United States | 41.63556 | -71.41111 | 3 | 28473 |
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