| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Mar Chiquita | city | Cordoba | Argentina | -30.80 | -62.88 | 216 | 7 |
| Mar Chiquita | city | Buenos Aires | Argentina | -37.75 | -57.42 | 3 | 0 |
| Mar Del Plat | city | Buenos Aires | Argentina | -38.00 | -57.56 | 78 | 68144 |
| Mar de Ajó | city | Buenos Aires | Argentina | -36.72 | -56.68 | 0 | 14361 |
| Mar de Cobo | city | Buenos Aires | Argentina | -37.77 | -57.45 | 9 | 875 |
| Mar de Ostende | city | Buenos Aires | Argentina | -37.13 | -56.87 | 3 | 14006 |
| Mar de Ostende | city | Buenos Aires | Argentina | -37.12 | -56.87 | 55 | 15418 |
| Mar de Plata | city | Buenos Aires | Argentina | -38.00 | -57.56 | 78 | 68144 |
| Mar del Plata | city | Buenos Aires | Argentina | -38.00 | -57.56 | 78 | 68144 |
| Mar del Sud | city | Buenos Aires | Argentina | -38.34 | -57.99 | 29 | 403 |
| Mar del Sur | city | Buenos Aires | Argentina | -38.34 | -57.99 | 29 | 403 |
| Mar del Tuyú | city | Buenos Aires | Argentina | -36.58 | -56.69 | 49 | 16343 |
| Mar-del-plata | city | Buenos Aires | Argentina | -38.00 | -57.56 | 78 | 68144 |
| Maradon | city | San Juan | Argentina | -31.76 | -68.89 | 6145 | 0 |
| Marapa | city | Tucuman | Argentina | -27.61 | -65.63 | 1122 | 2604 |
| Maravilla | city | Santiago del Estero | Argentina | -27.63 | -63.50 | 830 | 298 |
| Maravilla | city | Salta | Argentina | -25.54 | -64.58 | 1807 | 445 |
| Marayes | city | San Juan | Argentina | -31.46 | -67.35 | 1978 | 1360 |
| Marcelino Escalada | city | Santa Fe | Argentina | -30.58 | -60.47 | 164 | 298 |
| Marcelino Ugarte | city | Buenos Aires | Argentina | -34.29 | -60.25 | 101 | 15116 |
| Marcelo Torcuato de Alvear | city | Buenos Aires | Argentina | -34.65 | -58.50 | 55 | 1316471 |
| Marcos | city | Entre Rios | Argentina | -31.52 | -58.15 | 131 | 447 |
| Marcos Juarez | city | Cordoba | Argentina | -32.70 | -62.11 | 360 | 18687 |
| Marcos Paz | city | Buenos Aires | Argentina | -34.78 | -58.84 | 88 | 37986 |
| Marcos Paz | city | Tucuman | Argentina | -26.82 | -65.28 | 1669 | 274782 |
| Marcos Paz | city | Chaco | Argentina | -24.87 | -61.60 | 830 | 149 |
| Marcos Paz | city | Buenos Aires | Argentina | -34.77 | -58.93 | 88 | 4622 |
| Marengo | city | Catamarca | Argentina | -28.48 | -65.76 | 1669 | 58626 |
| Margarita | city | Santa Fe | Argentina | -29.69 | -60.25 | 150 | 3110 |
| Margarita | city | Santa Fe | Argentina | -31.69 | -61.65 | 226 | 1279 |
| Margarita BeTen | city | Chaco | Argentina | -27.26 | -58.97 | 193 | 2551 |
| Margarita Belen | city | Chaco | Argentina | -27.26 | -58.97 | 193 | 2551 |
| Mari Lauquen | city | Buenos Aires | Argentina | -36.13 | -62.98 | 311 | 149 |
| Maria Grande | city | Entre Rios | Argentina | -31.67 | -59.90 | 288 | 9671 |
| Maria Ignacia | city | Buenos Aires | Argentina | -37.40 | -59.51 | 830 | 1845 |
| Maria Juana | city | Santa Fe | Argentina | -31.68 | -61.75 | 347 | 4626 |
| Maria Lucila | city | Buenos Aires | Argentina | -36.18 | -61.53 | 341 | 149 |
| Mariana Acosta | city | Buenos Aires | Argentina | -34.72 | -58.79 | 75 | 233053 |
| Mariano Acosta | city | Buenos Aires | Argentina | -34.72 | -58.79 | 75 | 233053 |
| Mariano Benítez | city | Buenos Aires | Argentina | -33.71 | -60.58 | 196 | 298 |
| Mariano Boedo | city | Formosa | Argentina | -26.11 | -58.49 | 219 | 149 |
| Mariano H. Alfonso | city | Buenos Aires | Argentina | -33.91 | -60.84 | 223 | 336 |
| Mariano H. Alfonzo | city | Buenos Aires | Argentina | -33.91 | -60.84 | 223 | 336 |
| Mariano I. Loza | city | Corrientes | Argentina | -29.38 | -58.19 | 305 | 3804 |
| Mariano J. Haedo | city | Buenos Aires | Argentina | -34.64 | -58.59 | 91 | 585179 |
| Mariano Miró | city | La Pampa | Argentina | -35.00 | -63.82 | 416 | 149 |
| Mariano Moreno | city | Neuquen | Argentina | -38.75 | -70.02 | 2536 | 1499 |
| Mariano Moreno | city | Buenos Aires | Argentina | -34.46 | -58.93 | 49 | 65519 |
| Mariano Moreno | city | Buenos Aires | Argentina | -34.65 | -58.79 | 52 | 240089 |
| Mariano Roldan | city | Buenos Aires | Argentina | -37.72 | -60.32 | 830 | 129 |
| Mariano Saavedra | city | Santa Fe | Argentina | -31.67 | -61.35 | 147 | 453 |
| Mariano Unzue | city | Buenos Aires | Argentina | -36.13 | -61.02 | 324 | 149 |
| Marini | city | Santa Fe | Argentina | -31.04 | -61.89 | 321 | 450 |
| Mariño | city | Tucuman | Argentina | -26.74 | -65.03 | 1686 | 2761 |
| Marmarita | city | Chaco | Argentina | -24.70 | -61.40 | 400 | 149 |
| Maroma Fallata | city | San Luis | Argentina | -35.84 | -66.57 | 1082 | 19 |
| Maroma de Olmedo | city | San Luis | Argentina | -35.32 | -66.47 | 1161 | 13 |
| Maroma de Paez | city | San Luis | Argentina | -35.47 | -66.49 | 1154 | 14 |
| Marquesado | city | San Juan | Argentina | -31.52 | -68.62 | 2509 | 80130 |
| Martillo La Golondrina | city | Santa Fe | Argentina | -28.47 | -59.98 | 180 | 149 |
| Martin Berrahondo | city | Buenos Aires | Argentina | -35.32 | -59.95 | 141 | 298 |
| Martin Colman | city | Buenos Aires | Argentina | -36.41 | -59.14 | 170 | 149 |
| Martin Garcia | city | Salta | Argentina | -24.21 | -62.77 | 830 | 149 |
| Martin Guerrico | city | Rio Negro | Argentina | -39.02 | -67.73 | 830 | 3435 |
| Martin de Loyola | city | San Luis | Argentina | -35.71 | -66.35 | 1115 | 0 |
| Martinez | city | Buenos Aires | Argentina | -34.49 | -58.51 | 68 | 494863 |
| Martinez | city | Santa Cruz | Argentina | -46.99 | -68.19 | 875 | 0 |
| Martinez | city | Santa Cruz | Argentina | -46.58 | -68.31 | 1023 | 0 |
| Martinez de Hoz | city | Buenos Aires | Argentina | -35.33 | -61.61 | 269 | 298 |
| Martiniano Leguizamon | city | Entre Rios | Argentina | -31.92 | -58.33 | 147 | 447 |
| Martires | city | Misiones | Argentina | -27.43 | -55.38 | 830 | 2001 |
| Martín Berraondo | city | Buenos Aires | Argentina | -35.32 | -59.95 | 141 | 298 |
| Martín Coronado | city | Buenos Aires | Argentina | -34.59 | -58.59 | 78 | 715123 |
| Martín Fierro | city | Buenos Aires | Argentina | -37.23 | -59.82 | 830 | 279 |
| Martín García | city | Salta | Argentina | -22.57 | -62.55 | 830 | 149 |
| Martín García | city | Corrientes | Argentina | -29.90 | -58.97 | 131 | 160 |
| Martínez del Tineo | city | Salta | Argentina | -23.90 | -64.06 | 1669 | 149 |
| Marucha | city | Buenos Aires | Argentina | -35.62 | -62.23 | 252 | 149 |
| Maruchas | city | Corrientes | Argentina | -29.17 | -59.07 | 190 | 447 |
| Marucho | city | Neuquen | Argentina | -39.45 | -70.18 | 2791 | 0 |
| Marull | city | Cordoba | Argentina | -30.99 | -62.83 | 272 | 596 |
| María Eugenia | city | Santa Fe | Argentina | -30.48 | -60.87 | 134 | 149 |
| María Ignacia | city | Santa Fe | Argentina | -28.83 | -59.52 | 98 | 447 |
| María Susana | city | Santa Fe | Argentina | -32.27 | -61.90 | 367 | 3334 |
| María Teresa | city | Santa Fe | Argentina | -34.01 | -61.91 | 252 | 8428 |