UpAlphabetical listing of Places in Region Metropolitana
| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
| Macul | city | Region Metropolitana | Chile | -33.50 | -70.57 | 2509 | 5617 |
| Macul | city | Region Metropolitana | Chile | -33.48 | -70.58 | 1912 | 58262 |
| Macul Alto | city | Region Metropolitana | Chile | -33.52 | -70.53 | 2854 | 3728 |
| Maipo | city | Region Metropolitana | Chile | -33.73 | -70.78 | 1669 | 14847 |
| Maipu | city | Region Metropolitana | Chile | -33.51 | -70.77 | 1669 | 442802 |
| Maiteines | city | Region Metropolitana | Chile | -33.42 | -71.39 | 1217 | 3681 |
| Maitenes | city | Region Metropolitana | Chile | -33.31 | -70.36 | 5869 | 423 |
| Maitenes | city | Region Metropolitana | Chile | -33.42 | -71.39 | 1217 | 3681 |
| Maitenes Nuevos | city | Region Metropolitana | Chile | -33.31 | -70.36 | 5869 | 423 |
| Maitenes Viejos | city | Region Metropolitana | Chile | -33.33 | -70.37 | 5029 | 6756 |
| Maitén | city | Region Metropolitana | Chile | -33.31 | -70.36 | 5869 | 423 |
| Maitén Redondo | city | Region Metropolitana | Chile | -33.29 | -70.35 | 5869 | 470 |
| Maitén Viejo | city | Region Metropolitana | Chile | -33.33 | -70.37 | 5029 | 6756 |
| Majadas de Pirque | city | Region Metropolitana | Chile | -33.65 | -70.54 | 2509 | 2198 |
| Mallarauquito | city | Region Metropolitana | Chile | -33.57 | -71.17 | 830 | 12076 |
| Malloco | city | Region Metropolitana | Chile | -33.60 | -70.85 | 1669 | 103979 |
| Manantiales | city | Region Metropolitana | Chile | -33.77 | -71.17 | 830 | 1979 |
| Mandinga | city | Region Metropolitana | Chile | -33.80 | -71.30 | 370 | 597 |
| Manzanito | city | Region Metropolitana | Chile | -33.89 | -70.20 | 5334 | 0 |
| Mapuhue | city | Region Metropolitana | Chile | -33.59 | -70.65 | 2007 | 4484 |
| Maria Pinto | city | Region Metropolitana | Chile | -33.52 | -71.12 | 830 | 12657 |
| Marquesa | city | Region Metropolitana | Chile | -33.63 | -71.41 | 830 | 12664 |
| Marruecoa | city | Region Metropolitana | Chile | -33.57 | -70.81 | 1669 | 123235 |
| Marruecos | city | Region Metropolitana | Chile | -33.57 | -70.81 | 1669 | 123235 |
| Matancilla | city | Region Metropolitana | Chile | -34.08 | -71.61 | 830 | 1263 |
| Melipilla | city | Region Metropolitana | Chile | -33.69 | -71.22 | 830 | 80354 |
| Mellipilla | city | Region Metropolitana | Chile | -33.69 | -71.22 | 830 | 80354 |
| Melocoton | city | Region Metropolitana | Chile | -33.69 | -70.33 | 3723 | 0 |
| Melocotón Alto | city | Region Metropolitana | Chile | -33.72 | -70.35 | 4445 | 0 |
| Melosa | city | Region Metropolitana | Chile | -33.85 | -70.20 | 5869 | 0 |
| Melosas | city | Region Metropolitana | Chile | -33.85 | -70.20 | 5869 | 0 |
| Miraflores | city | Region Metropolitana | Chile | -33.41 | -71.05 | 830 | 2069 |
| Molles | city | Region Metropolitana | Chile | -34.01 | -71.53 | 830 | 1069 |
| Monserrat | city | Region Metropolitana | Chile | -33.42 | -70.63 | 2608 | 695765 |
| Monte Alegre | city | Region Metropolitana | Chile | -33.63 | -71.27 | 406 | 12302 |
| Monte Blanco | city | Region Metropolitana | Chile | -33.67 | -71.03 | 830 | 15313 |
| Monte Carmelo | city | Region Metropolitana | Chile | -33.70 | -70.70 | 1669 | 9301 |
| Monte de los Ratones | city | Region Metropolitana | Chile | -33.67 | -70.70 | 1781 | 4470 |
| Montenegro | city | Region Metropolitana | Chile | -32.97 | -70.83 | 2549 | 2887 |
| Mundo Nuevo | city | Region Metropolitana | Chile | -33.35 | -71.37 | 951 | 3301 |
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