| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Ma | city | Changwat Chiang Rai | Thailand | 19.3666667 | 99.5 | 1689 | 8912 |
| Mae Chai | city | Changwat Chiang Rai | Thailand | 19.35 | 99.8333333 | 1272 | 19230 |
| Mae Chai Tai | city | Changwat Chiang Rai | Thailand | 19.35 | 99.8333333 | 1272 | 19230 |
| Mae Chan | city | Changwat Chiang Rai | Thailand | 20.1472222 | 99.8538889 | 1377 | 14725 |
| Mae Chedi | city | Changwat Chiang Rai | Thailand | 19.1833333 | 99.5166667 | 1860 | 8706 |
| Mae Ka Long | city | Changwat Chiang Rai | Thailand | 19.05 | 99.95 | 1381 | 19248 |
| Mae Liap | city | Changwat Chiang Rai | Thailand | 20.0977778 | 100.1577778 | 1312 | 14555 |
| Mae Paen Nauk | city | Changwat Chiang Rai | Thailand | 20.1166667 | 100 | 1299 | 16063 |
| Mae Sai | city | Changwat Chiang Rai | Thailand | 20.43 | 99.8858333 | 1289 | 19736 |
| Mae Suai | city | Changwat Chiang Rai | Thailand | 19.65 | 99.55 | 1535 | 6552 |
| Mae Suai Muang Pok | city | Changwat Chiang Rai | Thailand | 19.65 | 99.55 | 1535 | 6552 |
| Mae Ta | city | Changwat Chiang Rai | Thailand | 19.8833333 | 100.1166667 | 1174 | 16333 |
| Mae Ta | city | Changwat Chiang Rai | Thailand | 19.8166667 | 100.2333333 | 1230 | 12387 |
| Maung Chun | city | Changwat Chiang Rai | Thailand | 19.3 | 100.1666667 | 1341 | 13744 |
| Me Lieb | city | Changwat Chiang Rai | Thailand | 20.0977778 | 100.1577778 | 1312 | 14555 |
| Me-hsai | city | Changwat Chiang Rai | Thailand | 20.4333333 | 99.8833333 | 1289 | 19736 |
| Mea Pen Nauk | city | Changwat Chiang Rai | Thailand | 20.1166667 | 100 | 1299 | 16063 |
| Mechai | city | Changwat Chiang Rai | Thailand | 19.35 | 99.8333333 | 1272 | 19230 |
| Mechedi | city | Changwat Chiang Rai | Thailand | 19.1833333 | 99.5166667 | 1860 | 8706 |
| Megahlong | city | Changwat Chiang Rai | Thailand | 19.05 | 99.95 | 1381 | 19248 |
| Menahoe | city | Changwat Chiang Rai | Thailand | 19.1166667 | 99.85 | 1312 | 19133 |
| Meo | city | Changwat Chiang Rai | Thailand | 19.4333333 | 100.5166667 | 3651 | 11904 |
| Mesuai | city | Changwat Chiang Rai | Thailand | 19.65 | 99.55 | 1535 | 6552 |
| Metak | city | Changwat Chiang Rai | Thailand | 19.8833333 | 100.1166667 | 1174 | 16333 |
| Mi | city | Changwat Chiang Rai | Thailand | 19.4333333 | 100.4333333 | 1807 | 13053 |
| Moeang Dheung | city | Changwat Chiang Rai | Thailand | 19.6833333 | 100.2 | 1249 | 22519 |
| Mon Pa Yang | city | Changwat Chiang Rai | Thailand | 19.7488889 | 100.3038889 | 1358 | 22638 |
| Mow | city | Changwat Chiang Rai | Thailand | 19.4333333 | 100.5166667 | 3651 | 11904 |
| Muang Chiang Rai | city | Changwat Chiang Rai | Thailand | 19.9 | 99.8333333 | 1263 | 21305 |
| Muang Chieng Rai | city | Changwat Chiang Rai | Thailand | 19.9 | 99.8333333 | 1263 | 21305 |
| Muang Jieng Khohng | city | Changwat Chiang Rai | Thailand | 20.2833333 | 100.4 | 1131 | 9030 |
| Muang Jieng Rai | city | Changwat Chiang Rai | Thailand | 19.9 | 99.8333333 | 1263 | 21305 |
| Muang Jieng Sen | city | Changwat Chiang Rai | Thailand | 20.2666667 | 100.0833333 | 1223 | 11708 |
| Muang Lau | city | Changwat Chiang Rai | Thailand | 19.45 | 100.1 | 1272 | 14364 |
| Muang Lo | city | Changwat Chiang Rai | Thailand | 19.45 | 100.1 | 1272 | 14364 |
| Muang Loi | city | Changwat Chiang Rai | Thailand | 19.2333333 | 100.3166667 | 1043 | 4459 |
| Muang Min | city | Changwat Chiang Rai | Thailand | 19.4333333 | 100.4333333 | 1807 | 13053 |
| Muang Oi | city | Changwat Chiang Rai | Thailand | 19.2333333 | 100.3166667 | 1043 | 4459 |
| Muang Phan | city | Changwat Chiang Rai | Thailand | 19.4666667 | 99.7166667 | 1384 | 21813 |
| Muang Tern | city | Changwat Chiang Rai | Thailand | 19.6833333 | 100.2 | 1249 | 22519 |
| Muang Teun | city | Changwat Chiang Rai | Thailand | 19.6833333 | 100.2 | 1249 | 22519 |
| Muang Vieng Papao | city | Changwat Chiang Rai | Thailand | 19.3666667 | 99.5 | 1689 | 8912 |
| Mēchai | city | Changwat Chiang Rai | Thailand | 19.35 | 99.8333333 | 1272 | 19230 |
| Mēchedi | city | Changwat Chiang Rai | Thailand | 19.1833333 | 99.5166667 | 1860 | 8706 |
| Mēgahlong | city | Changwat Chiang Rai | Thailand | 19.05 | 99.95 | 1381 | 19248 |
| Mēnāhoe | city | Changwat Chiang Rai | Thailand | 19.1166667 | 99.85 | 1312 | 19133 |
| Mēsūai | city | Changwat Chiang Rai | Thailand | 19.65 | 99.55 | 1535 | 6552 |
| Mētāk | city | Changwat Chiang Rai | Thailand | 19.8833333 | 100.1166667 | 1174 | 16333 |
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