| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Arabilla | city | Tarapaca | Chile | -19.22 | -68.86 | 12919 | 0 |
| Arachildu | city | Los Lagos | Chile | -42.59 | -73.61 | 75 | 1770 |
| Aradchildu | city | Los Lagos | Chile | -42.59 | -73.61 | 75 | 1770 |
| Araucana | city | Biobio | Chile | -37.00 | -72.95 | 246 | 25520 |
| Arauco | city | Biobio | Chile | -37.25 | -73.32 | 6 | 712 |
| Aravilla | city | Tarapaca | Chile | -19.22 | -68.86 | 12919 | 0 |
| Arboleda | city | Libertador General Bernardo O'Higgins | Chile | -34.51 | -71.33 | 830 | 7685 |
| Arboleda Grande | city | Coquimbo | Chile | -31.75 | -70.98 | 1669 | 894 |
| Arboleda de Huique | city | Libertador General Bernardo O'Higgins | Chile | -34.51 | -71.33 | 830 | 7685 |
| Arboledas | city | Libertador General Bernardo O'Higgins | Chile | -34.60 | -70.97 | 1105 | 5643 |
| Arboledas de Pedehue | city | Libertador General Bernardo O'Higgins | Chile | -34.60 | -70.97 | 1105 | 5643 |
| Arco | city | Los Lagos | Chile | -41.42 | -72.05 | 2509 | 149 |
| Arena | city | Coquimbo | Chile | -32.02 | -71.42 | 2929 | 1676 |
| Arenal | city | Biobio | Chile | -37.19 | -72.62 | 187 | 7199 |
| Arenal | city | Maule | Chile | -35.86 | -72.20 | 830 | 596 |
| Arenales Bandurria | city | Atacama | Chile | -28.71 | -71.32 | 830 | 92 |
| Arenilla | city | Coquimbo | Chile | -29.25 | -71.10 | 3349 | 149 |
| Arepunra | city | Tarapaca | Chile | -18.94 | -69.42 | 10216 | 0 |
| Arepunta | city | Tarapaca | Chile | -18.94 | -69.42 | 10216 | 0 |
| Argolla | city | Atacama | Chile | -26.93 | -70.79 | 311 | 82 |
| Arica | city | Arica y Parinacota | Chile | -18.47 | -70.30 | 387 | 59776 |
| Arica | city | Libertador General Bernardo O'Higgins | Chile | -34.62 | -71.12 | 905 | 10523 |
| Arika | city | Arica y Parinacota | Chile | -18.47 | -70.30 | 387 | 59776 |
| Arinia | city | Biobio | Chile | -36.24 | -72.81 | 830 | 666 |
| Ariquilda | city | Tarapaca | Chile | -19.62 | -69.50 | 5429 | 0 |
| Armahue | city | Libertador General Bernardo O'Higgins | Chile | -34.41 | -71.22 | 1669 | 29686 |
| Armerillo | city | Maule | Chile | -35.70 | -71.10 | 1745 | 745 |
| Arojane | city | Arica y Parinacota | Chile | -18.07 | -69.32 | 15108 | 0 |
| Arojani | city | Arica y Parinacota | Chile | -18.07 | -69.32 | 15108 | 0 |
| Aroma | city | Tarapaca | Chile | -19.57 | -69.34 | 7667 | 0 |
| Aroma | city | Arica y Parinacota | Chile | -18.23 | -69.58 | 10908 | 0 |
| Arquihue | city | Los Rios | Chile | -40.18 | -72.14 | 2831 | 1341 |
| Arquilhue | city | Los Rios | Chile | -40.18 | -72.14 | 2831 | 1341 |
| Arrayan | city | Biobio | Chile | -37.48 | -72.41 | 830 | 7146 |
| Arrayan | city | Region Metropolitana | Chile | -33.36 | -70.48 | 3349 | 775801 |
| Arrayan | city | Libertador General Bernardo O'Higgins | Chile | -33.99 | -70.68 | 1669 | 5415 |
| Arrayan | city | Coquimbo | Chile | -29.70 | -71.27 | 1761 | 469 |
| Arrayán | city | Los Lagos | Chile | -41.39 | -72.88 | 830 | 18681 |
| Arrayán | city | Los Lagos | Chile | -43.35 | -72.02 | 3349 | 149 |
| Arthur | city | Los Lagos | Chile | -41.26 | -72.78 | 357 | 439 |
| Artificio | city | Valparaiso | Chile | -32.76 | -71.19 | 830 | 37943 |
| Artificio | city | Valparaiso | Chile | -32.40 | -71.10 | 1053 | 1826 |
| Artificio de Pedegua | city | Valparaiso | Chile | -32.40 | -71.10 | 1053 | 1826 |
| Arvejal | city | Aysen | Chile | -48.07 | -73.05 | 1213 | 0 |