| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Mabrigida | city | Provincia de San Juan | Dominican Republic | 18.8 | -71.4166667 | 2421 | 10808 |
| Mabrígida | city | Provincia de San Juan | Dominican Republic | 18.8 | -71.4166667 | 2421 | 10808 |
| Madregil | city | Provincia de San Juan | Dominican Republic | 18.8166667 | -71.4 | 1916 | 10808 |
| Madrejil | city | Provincia de San Juan | Dominican Republic | 18.8166667 | -71.4 | 1916 | 10808 |
| Magua Abajo | city | Provincia de San Juan | Dominican Republic | 18.9333333 | -71.25 | 2408 | 10798 |
| Magua El Medio | city | Provincia de San Juan | Dominican Republic | 18.95 | -71.25 | 3008 | 10798 |
| Maguana | city | Provincia de San Juan | Dominican Republic | 18.9166667 | -71.2666667 | 1748 | 10798 |
| Maguana Abajo | city | Provincia de San Juan | Dominican Republic | 18.9333333 | -71.25 | 2408 | 10798 |
| Maguana Arriba | city | Provincia de San Juan | Dominican Republic | 18.95 | -71.25 | 3008 | 10798 |
| Maguana El Medio | city | Provincia de San Juan | Dominican Republic | 18.95 | -71.25 | 3008 | 10798 |
| Maguana en Medio | city | Provincia de San Juan | Dominican Republic | 18.95 | -71.25 | 3008 | 10798 |
| Maguá Abajo | city | Provincia de San Juan | Dominican Republic | 18.9333333 | -71.25 | 2408 | 10798 |
| Maguá El Medio | city | Provincia de San Juan | Dominican Republic | 18.95 | -71.25 | 3008 | 10798 |
| Majagual | city | Provincia de San Juan | Dominican Republic | 18.7833333 | -71.5 | 2316 | 10809 |
| Majagual | city | Provincia de San Juan | Dominican Republic | 19 | -71.3 | 2181 | 10795 |
| Manaclar | city | Provincia de San Juan | Dominican Republic | 19.1333333 | -71.2833333 | 4566 | 12018 |
| Managuayabo | city | Provincia de San Juan | Dominican Republic | 18.7833333 | -71.2166667 | 1253 | 10809 |
| Manoguayabo | city | Provincia de San Juan | Dominican Republic | 18.7833333 | -71.2166667 | 1253 | 10809 |
| Mascota | city | Provincia de San Juan | Dominican Republic | 18.7333333 | -71.15 | 1233 | 10812 |
| Matas de Farfan | city | Provincia de San Juan | Dominican Republic | 18.8736111 | -71.5213889 | 1459 | 10805 |
| Matayaya | city | Provincia de San Juan | Dominican Republic | 18.89 | -71.5925 | 1381 | 8796 |
| Media Cara | city | Provincia de San Juan | Dominican Republic | 18.8333333 | -71.4 | 1758 | 10808 |
| Miguel Marti | city | Provincia de San Juan | Dominican Republic | 18.9333333 | -71.5833333 | 1200 | 9851 |
| Miguel Martin | city | Provincia de San Juan | Dominican Republic | 18.9333333 | -71.5833333 | 1200 | 9851 |
| Miguel Martinez | city | Provincia de San Juan | Dominican Republic | 18.9333333 | -71.5833333 | 1200 | 9851 |
| Miguel Martí | city | Provincia de San Juan | Dominican Republic | 18.9333333 | -71.5833333 | 1200 | 9851 |
| Miguel Martín | city | Provincia de San Juan | Dominican Republic | 18.9333333 | -71.5833333 | 1200 | 9851 |
| Miguel Martínez | city | Provincia de San Juan | Dominican Republic | 18.9333333 | -71.5833333 | 1200 | 9851 |
| Mijo | city | Provincia de San Juan | Dominican Republic | 18.75 | -71.1333333 | 1181 | 10812 |
| Mogollon | city | Provincia de San Juan | Dominican Republic | 18.8166667 | -71.1833333 | 1410 | 10808 |
| Mogollón | city | Provincia de San Juan | Dominican Republic | 18.8166667 | -71.1833333 | 1410 | 10808 |
| Molina | city | Provincia de San Juan | Dominican Republic | 18.8833333 | -71.6166667 | 1325 | 8796 |
| Monte Ara | city | Provincia de San Juan | Dominican Republic | 18.9833333 | -71.4166667 | 2395 | 10772 |
| Monte Arriba | city | Provincia de San Juan | Dominican Republic | 18.7833333 | -71.5333333 | 2608 | 10467 |
| Monte Ará | city | Provincia de San Juan | Dominican Republic | 18.9833333 | -71.4166667 | 2395 | 10772 |
| Monte Cana | city | Provincia de San Juan | Dominican Republic | 18.7833333 | -71.5333333 | 2608 | 10467 |
| Monte Caña | city | Provincia de San Juan | Dominican Republic | 18.7833333 | -71.5333333 | 2608 | 10467 |
| Moronte | city | Provincia de San Juan | Dominican Republic | 18.85 | -71.5166667 | 1574 | 10805 |
|
|