| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Mechita | city | Buenos Aires | Argentina | -35.07 | -60.41 | 157 | 11173 |
| Mechongue | city | Buenos Aires | Argentina | -38.15 | -58.22 | 200 | 3557 |
| Mecoyita | city | Salta | Argentina | -22.12 | -64.90 | 7696 | 658 |
| Medaland | city | Buenos Aires | Argentina | -37.46 | -57.19 | 9 | 141 |
| Medanito | city | Catamarca | Argentina | -27.53 | -67.59 | 5200 | 2400 |
| Medanito | city | San Luis | Argentina | -32.90 | -66.78 | 2509 | 0 |
| Medanitos | city | Catamarca | Argentina | -27.53 | -67.59 | 5200 | 2400 |
| Medanitos | city | Jujuy | Argentina | -23.95 | -66.82 | 12755 | 0 |
| Medano | city | San Juan | Argentina | -29.67 | -69.27 | 10308 | 0 |
| Medanos | city | Buenos Aires | Argentina | -38.83 | -62.69 | 104 | 8362 |
| Medanos | city | Entre Rios | Argentina | -33.44 | -59.07 | 32 | 273 |
| Medanos Negros | city | La Rioja | Argentina | -31.50 | -66.92 | 1669 | 0 |
| Medellín | city | Santiago del Estero | Argentina | -28.65 | -63.79 | 364 | 754 |
| Media Agua | city | San Juan | Argentina | -31.98 | -68.42 | 1837 | 7006 |
| Media Flor | city | Santiago del Estero | Argentina | -27.42 | -64.33 | 830 | 2003 |
| Media Luna | city | Mendoza | Argentina | -34.73 | -66.70 | 1240 | 139 |
| Media Luna | city | Cordoba | Argentina | -31.24 | -63.87 | 1013 | 329 |
| Media Luna | city | Salta | Argentina | -24.67 | -64.22 | 1669 | 4556 |
| Media Luna | city | Formosa | Argentina | -23.05 | -62.08 | 830 | 298 |
| Media Luna | city | Salta | Argentina | -22.15 | -62.97 | 905 | 149 |
| Media Luna | city | Santa Cruz | Argentina | -50.75 | -69.19 | 154 | 0 |
| Media Luna | city | Santa Fe | Argentina | -28.60 | -59.65 | 111 | 447 |
| Media Luna | city | Chaco | Argentina | -24.95 | -61.30 | 830 | 149 |
| Media Naranja | city | Cordoba | Argentina | -30.64 | -64.93 | 1669 | 298 |
| Medina | city | Tucuman | Argentina | -27.42 | -65.52 | 1056 | 19034 |
| Medinas | city | Tucuman | Argentina | -27.42 | -65.52 | 1056 | 19034 |
| Medrano | city | Mendoza | Argentina | -33.18 | -68.61 | 2509 | 8470 |
| Melagro | city | San Luis | Argentina | -33.13 | -66.36 | 2509 | 624 |
| Melanie | city | Santa Fe | Argentina | -29.30 | -59.87 | 134 | 740 |
| Melchor Buchanan | city | Buenos Aires | Argentina | -34.98 | -58.22 | 78 | 42551 |
| Melchor Romero | city | Buenos Aires | Argentina | -34.95 | -58.05 | 91 | 126176 |
| Melero | city | Santiago del Estero | Argentina | -28.28 | -63.00 | 344 | 0 |
| Melero | city | Santiago del Estero | Argentina | -28.27 | -63.10 | 321 | 21 |
| Melico | city | Rio Negro | Argentina | -40.87 | -70.72 | 3398 | 0 |
| Melincue | city | Santa Fe | Argentina | -33.66 | -61.45 | 285 | 2919 |
| Melo | city | Cordoba | Argentina | -34.35 | -63.45 | 413 | 298 |
| Membrillar | city | Buenos Aires | Argentina | -34.59 | -60.61 | 209 | 447 |
| Mencué | city | Rio Negro | Argentina | -40.42 | -69.61 | 4189 | 308 |
| Mendiolaza | city | Cordoba | Argentina | -31.27 | -64.30 | 1732 | 38922 |
| Mendosa | city | Mendoza | Argentina | -32.89 | -68.83 | 2739 | 173623 |
| Mendoza | city | Mendoza | Argentina | -32.89 | -68.83 | 2739 | 173623 |
| Menucos | city | Rio Negro | Argentina | -39.62 | -67.08 | 209 | 0 |
| Menucos | city | Rio Negro | Argentina | -39.43 | -67.50 | 830 | 0 |
| Merayo | city | Buenos Aires | Argentina | -43.80 | -65.75 | 882 | 0 |
| Merced | city | Catamarca | Argentina | -28.15 | -65.66 | 2775 | 1666 |
| Merced La Pampa | city | La Rioja | Argentina | -31.42 | -66.63 | 1886 | 127 |
| Merced Milagro | city | La Rioja | Argentina | -29.32 | -65.93 | 918 | 894 |
| Merced de Capayan y Allega | city | La Rioja | Argentina | -29.03 | -66.08 | 980 | 861 |
| Merced de Ibanez | city | Catamarca | Argentina | -29.08 | -65.18 | 830 | 0 |
| Merced de Pinto | city | Santiago del Estero | Argentina | -29.18 | -64.92 | 830 | 0 |
| Merced de Pintos | city | Santiago del Estero | Argentina | -28.93 | -64.92 | 830 | 43 |
| Merced de Tudcun | city | La Rioja | Argentina | -29.90 | -66.91 | 1669 | 0 |
| Merced del Campamento del Fraile | city | La Rioja | Argentina | -31.00 | -65.83 | 918 | 0 |
| Mercedes | city | San Luis | Argentina | -33.67 | -65.46 | 1669 | 10650 |
| Mercedes | city | Buenos Aires | Argentina | -34.65 | -59.43 | 131 | 45179 |
| Mercedes | city | Corrientes | Argentina | -29.18 | -58.08 | 246 | 23719 |
| Mercedes | city | Salta | Argentina | -25.98 | -64.65 | 1811 | 2770 |
| Mercedes | city | Cordoba | Argentina | -31.53 | -63.38 | 830 | 447 |
| Merceditas | city | Santa Fe | Argentina | -33.95 | -61.33 | 311 | 604 |
| Mercedo | city | Buenos Aires | Argentina | -34.65 | -59.43 | 131 | 45179 |
| Meridiano | city | Buenos Aires | Argentina | -35.55 | -63.37 | 337 | 1433 |
| Meridiano Quinto | city | Buenos Aires | Argentina | -35.55 | -63.37 | 337 | 1433 |
| Merlo | city | Buenos Aires | Argentina | -34.67 | -58.73 | 75 | 328307 |
| Merlo | city | San Luis | Argentina | -32.34 | -65.01 | 2828 | 11117 |
| Mersedesas | city | Buenos Aires | Argentina | -34.65 | -59.43 | 131 | 45179 |
| Mersedesas | city | Corrientes | Argentina | -29.18 | -58.08 | 246 | 23719 |
| Mesa de Mariano | city | Cordoba | Argentina | -31.07 | -65.09 | 2509 | 196 |
| Mesada | city | Salta | Argentina | -25.72 | -65.38 | 6000 | 0 |
| Mesada | city | Chaco | Argentina | -24.73 | -61.60 | 830 | 149 |
| Mesada | city | Catamarca | Argentina | -27.10 | -67.67 | 7549 | 0 |
| Mesada | city | La Rioja | Argentina | -28.87 | -67.55 | 5941 | 494 |
| Meseta | city | Salta | Argentina | -24.47 | -65.87 | 10068 | 0 |
| Meseta del Lago Buenos Aires | city | Santa Cruz | Argentina | -46.92 | -71.25 | 5029 | 0 |
| Mesilla Blanca | city | La Rioja | Argentina | -29.53 | -65.85 | 1171 | 894 |
| Mesillas | city | La Rioja | Argentina | -29.00 | -67.10 | 8467 | 149 |
| Mesón de Fierro | city | Chaco | Argentina | -27.43 | -61.02 | 226 | 512 |
| Metileo | city | La Pampa | Argentina | -35.77 | -63.94 | 380 | 614 |
| Metán | city | Salta | Argentina | -25.50 | -64.97 | 2723 | 5905 |
| Metán | city | Tucuman | Argentina | -27.07 | -64.83 | 1669 | 1392 |
| Metán Viejo | city | Salta | Argentina | -25.54 | -64.98 | 2650 | 3783 |