| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Macin | city | Tulcea | Romania | 45.25 | 28.15 | 88 | 10052 |
| Magurele | city | Tulcea | Romania | 44.92 | 28.23 | 255 | 2762 |
| Mahmudia | city | Tulcea | Romania | 45.08 | 29.08 | 19 | 3478 |
| Mahmudie | city | Tulcea | Romania | 45.08 | 29.08 | 19 | 3478 |
| Mahmudla | city | Tulcea | Romania | 45.08 | 29.08 | 19 | 3478 |
| Mahomencea | city | Tulcea | Romania | 44.75 | 28.28 | 321 | 1190 |
| Mahometcea | city | Tulcea | Romania | 44.75 | 28.28 | 321 | 1190 |
| Malcoci | city | Tulcea | Romania | 45.13 | 28.88 | 180 | 43366 |
| Manastirea Celic Dere | city | Tulcea | Romania | 45.13 | 28.60 | 265 | 2834 |
| Manastirea Cocos | city | Tulcea | Romania | 45.20 | 28.42 | 974 | 3296 |
| Manastirea Cocosul | city | Tulcea | Romania | 45.20 | 28.42 | 974 | 3296 |
| Manastirea Saon | city | Tulcea | Romania | 45.22 | 28.55 | 131 | 3565 |
| Manastirea Saona | city | Tulcea | Romania | 45.22 | 28.55 | 131 | 3565 |
| Mandra | city | Tulcea | Romania | 44.83 | 28.42 | 830 | 2399 |
| Martie 6 | city | Tulcea | Romania | 44.77 | 28.88 | 59 | 3041 |
| Meidanchioi | city | Tulcea | Romania | 45.10 | 28.48 | 830 | 2755 |
| Meidankioi | city | Tulcea | Romania | 45.10 | 28.48 | 830 | 2755 |
| Mečinas | city | Tulcea | Romania | 45.25 | 28.15 | 88 | 10052 |
| Meşteru | city | Tulcea | Romania | 44.93 | 28.30 | 830 | 1380 |
| Mihai Bravu | city | Tulcea | Romania | 44.95 | 28.65 | 124 | 2605 |
| Mihai-Bravul | city | Tulcea | Romania | 44.95 | 28.65 | 124 | 2605 |
| Mihail Kogalniceanu | city | Tulcea | Romania | 45.03 | 28.73 | 16 | 2393 |
| Mihail-Cogalniceanu | city | Tulcea | Romania | 45.03 | 28.73 | 16 | 2393 |
| Mila 23 | city | Tulcea | Romania | 45.18 | 29.40 | 82 | 118 |
| Mila Douazeci si Trei | city | Tulcea | Romania | 45.18 | 29.40 | 82 | 118 |
| Mila Nouă | city | Tulcea | Romania | 44.88 | 29.60 | 3 | 135 |
| Mina Altantep | city | Tulcea | Romania | 44.78 | 28.60 | 360 | 1600 |
| Mina Altin-Tepe | city | Tulcea | Romania | 44.78 | 28.60 | 360 | 1600 |
| Mina Altân-Tepe | city | Tulcea | Romania | 44.78 | 28.60 | 360 | 1600 |
| Mina-Altan-Tepe | city | Tulcea | Romania | 44.78 | 28.60 | 360 | 1600 |
| Minastirea Cocos | city | Tulcea | Romania | 45.20 | 28.42 | 974 | 3296 |
| Minastirea Saon | city | Tulcea | Romania | 45.22 | 28.55 | 131 | 3565 |
| Mindra | city | Tulcea | Romania | 44.83 | 28.42 | 830 | 2399 |
| Mineri | city | Tulcea | Romania | 45.17 | 28.72 | 121 | 5540 |
| Mircea Voda | city | Tulcea | Romania | 45.05 | 28.38 | 328 | 2204 |
| Monaster | city | Tulcea | Romania | 45.18 | 28.48 | 830 | 4122 |
| Morughiol | city | Tulcea | Romania | 45.03 | 29.17 | 118 | 1052 |
| Muntele Carol | city | Tulcea | Romania | 45.10 | 28.22 | 180 | 4825 |
| Muntele Victoria | city | Tulcea | Romania | 45.10 | 28.18 | 298 | 4245 |
| Muri Geul | city | Tulcea | Romania | 45.03 | 29.17 | 118 | 1052 |
| Murighiol | city | Tulcea | Romania | 45.03 | 29.17 | 118 | 1052 |
| Murughiol | city | Tulcea | Romania | 45.03 | 29.17 | 118 | 1052 |
| Mânăstirea Sauna | city | Tulcea | Romania | 45.22 | 28.55 | 131 | 3565 |
| Mânăstirea Uspenia | city | Tulcea | Romania | 44.83 | 28.57 | 830 | 2044 |
| Mânăştirea Celicdere de Maici | city | Tulcea | Romania | 45.13 | 28.60 | 265 | 2834 |
| Mânăştirea Celicdere de Părinţi | city | Tulcea | Romania | 45.13 | 28.60 | 265 | 2834 |
| Mînăstirea Celic Dere | city | Tulcea | Romania | 45.13 | 28.60 | 265 | 2834 |