| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Marambote | city | Azuay | Ecuador | -3.17 | -79.20 | 8389 | 5217 |
| Maranon | city | Guayas | Ecuador | -1.88 | -79.78 | 85 | 16922 |
| Maras | city | Azuay | Ecuador | -2.79 | -78.74 | 10068 | 19282 |
| Maravilla | city | Guayas | Ecuador | -1.93 | -79.53 | 150 | 14089 |
| Maravilla | city | Santo Domingo de los Tsachilas | Ecuador | -0.50 | -79.26 | 1669 | 7001 |
| Marcabeli | city | El Oro | Ecuador | -3.79 | -79.91 | 2050 | 5588 |
| Marco | city | Azuay | Ecuador | -3.22 | -79.53 | 10068 | 2444 |
| Marco | city | Guayas | Ecuador | -1.87 | -79.87 | 82 | 16367 |
| Marcoloma | city | Azuay | Ecuador | -2.80 | -78.78 | 7906 | 23678 |
| Marcopamba | city | Azuay | Ecuador | -2.75 | -78.77 | 8389 | 24624 |
| Marcos Espinel | city | Tungurahua | Ecuador | -1.17 | -78.52 | 10190 | 23999 |
| Margarita | city | Guayas | Ecuador | -1.93 | -79.82 | 68 | 9157 |
| Margarita | city | Guayas | Ecuador | -1.62 | -79.87 | 131 | 11778 |
| Maria | city | Guayas | Ecuador | -2.23 | -79.58 | 830 | 23958 |
| Maria Clementina | city | Guayas | Ecuador | -2.03 | -79.77 | 42 | 7631 |
| Maria Eugenia | city | Guayas | Ecuador | -2.23 | -79.58 | 830 | 23958 |
| Maria Luisa | city | Guayas | Ecuador | -1.82 | -79.78 | 98 | 21677 |
| Maria Pinto | city | Manabi | Ecuador | -0.73 | -79.63 | 830 | 2193 |
| Maria Teresa | city | Pichincha | Ecuador | -0.27 | -79.10 | 1981 | 49008 |
| Maria Teresa | city | Guayas | Ecuador | -2.32 | -79.53 | 830 | 7384 |
| Marian | city | Sucumbios | Ecuador | -0.03 | -76.33 | 846 | 384 |
| Mariana Jesús | city | Pichincha | Ecuador | -0.08 | -78.42 | 7808 | 126232 |
| Mariana de Jesus | city | Pichincha | Ecuador | -0.08 | -78.42 | 7808 | 126232 |
| Marianito | city | Pichincha | Ecuador | -0.50 | -78.50 | 11748 | 11830 |
| Mariano Acosta | city | Imbabura | Ecuador | 0.30 | -77.98 | 13428 | 4714 |
| Mariano Moreno | city | Azuay | Ecuador | -2.86 | -78.72 | 10908 | 13955 |
| Maricumba | city | Guayas | Ecuador | -0.91 | -79.65 | 314 | 2175 |
| Maridueña | city | Guayas | Ecuador | -2.21 | -79.43 | 830 | 22536 |
| Marina | city | Guayas | Ecuador | -1.63 | -79.98 | 124 | 7578 |
| Mariquita | city | Guayas | Ecuador | -1.78 | -79.77 | 104 | 19726 |
| Mariscal | city | Pichincha | Ecuador | -0.55 | -78.58 | 10068 | 11263 |
| Mariscal Sucre | city | Guayas | Ecuador | -2.11 | -79.50 | 410 | 38807 |
| Mariscal Sucre | city | Sucumbios | Ecuador | 0.10 | -76.90 | 1669 | 24108 |
| Mariscal Sucre | city | Pichincha | Ecuador | 0.17 | -79.16 | 1240 | 3279 |
| Marivina | city | Azuay | Ecuador | -3.14 | -79.00 | 10068 | 7028 |
| Marques | city | Tungurahua | Ecuador | -1.13 | -78.60 | 8815 | 18877 |
| Marquesa | city | Pichincha | Ecuador | -0.25 | -78.58 | 10908 | 241985 |
| Marsella | city | Los Rios | Ecuador | -1.60 | -79.72 | 121 | 19917 |
| Martínez | city | Azuay | Ecuador | -2.97 | -78.93 | 8664 | 18921 |
| Maruja | city | Guayas | Ecuador | -2.20 | -79.62 | 337 | 33516 |
| Maruja | city | Guayas | Ecuador | -2.18 | -79.65 | 324 | 20281 |
| María | city | Guayas | Ecuador | -2.24 | -79.77 | 150 | 42168 |
| María | city | Guayas | Ecuador | -1.87 | -79.87 | 82 | 16367 |
| María | city | Pichincha | Ecuador | -0.23 | -78.48 | 9228 | 425850 |
| María Angélica | city | Guayas | Ecuador | -1.91 | -79.75 | 68 | 11622 |
| María Cristina | city | Los Rios | Ecuador | -1.94 | -79.31 | 1669 | 5791 |
| María Eugenia | city | Guayas | Ecuador | -2.08 | -79.70 | 121 | 10757 |
| María Eugenia | city | Guayas | Ecuador | -2.17 | -79.62 | 288 | 46983 |
| María Hilda | city | Guayas | Ecuador | -1.90 | -79.73 | 72 | 12749 |
| María Luisa | city | Guayas | Ecuador | -2.06 | -79.72 | 91 | 9262 |
| María Mercedes | city | Guayas | Ecuador | -1.96 | -79.69 | 72 | 13868 |
| María Mercedes | city | Guayas | Ecuador | -2.09 | -79.52 | 367 | 49771 |