| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Obrajia | city | Arica y Parinacota | Chile | -18.84 | -69.80 | 5892 | 0 |
| Obregon | city | Valparaiso | Chile | -33.16 | -71.66 | 1204 | 2788 |
| Ocacucho | city | Tarapaca | Chile | -19.80 | -68.73 | 14419 | 0 |
| Ocampo | city | Valparaiso | Chile | -32.81 | -70.92 | 1669 | 4768 |
| Ochagavia | city | Region Metropolitana | Chile | -33.48 | -70.68 | 1669 | 552085 |
| Ocharaza | city | Tarapaca | Chile | -19.88 | -69.43 | 6709 | 0 |
| Ocoa | city | Valparaiso | Chile | -32.84 | -71.08 | 1669 | 7127 |
| Ocoa | city | Valparaiso | Chile | -32.85 | -71.09 | 1669 | 7167 |
| Oficina Adriático | city | Tarapaca | Chile | -20.40 | -69.93 | 4189 | 149 |
| Oficina Alemania | city | Antofagasta | Chile | -25.16 | -69.91 | 5869 | 0 |
| Oficina Americana | city | Antofagasta | Chile | -23.95 | -69.77 | 2844 | 745 |
| Oficina Bellavista | city | Tarapaca | Chile | -20.82 | -69.72 | 3349 | 149 |
| Oficina Buen Retiro | city | Tarapaca | Chile | -20.23 | -69.82 | 3523 | 149 |
| Oficina Carmen Bajo | city | Tarapaca | Chile | -20.27 | -69.79 | 3428 | 149 |
| Oficina Cholita | city | Tarapaca | Chile | -20.37 | -69.88 | 3484 | 149 |
| Oficina Constancia | city | Tarapaca | Chile | -20.01 | -69.78 | 3645 | 3 |
| Oficina Coruna | city | Tarapaca | Chile | -20.48 | -69.88 | 3435 | 149 |
| Oficina Diana | city | Tarapaca | Chile | -20.47 | -69.77 | 3349 | 149 |
| Oficina Dolores | city | Tarapaca | Chile | -19.68 | -69.95 | 3648 | 0 |
| Oficina Eslavonia | city | Tarapaca | Chile | -20.85 | -69.73 | 3349 | 149 |
| Oficina Felisa | city | Tarapaca | Chile | -20.52 | -69.84 | 4317 | 149 |
| Oficina Gruta | city | Antofagasta | Chile | -21.97 | -69.62 | 3405 | 149 |
| Oficina Grutas | city | Antofagasta | Chile | -21.97 | -69.62 | 3405 | 149 |
| Oficina Humberstone | city | Tarapaca | Chile | -20.21 | -69.80 | 3457 | 149 |
| Oficina Iris | city | Tarapaca | Chile | -20.91 | -69.63 | 3349 | 149 |
| Oficina Kerima | city | Tarapaca | Chile | -20.18 | -69.78 | 3425 | 149 |
| Oficina La Tirana | city | Tarapaca | Chile | -20.34 | -69.66 | 3349 | 149 |
| Oficina Limena | city | Tarapaca | Chile | -20.37 | -69.90 | 3553 | 149 |
| Oficina Los Amigos | city | Antofagasta | Chile | -25.44 | -69.93 | 5869 | 0 |
| Oficina Mapocho | city | Tarapaca | Chile | -20.08 | -69.75 | 3608 | 106 |
| Oficina Maria | city | Antofagasta | Chile | -23.03 | -69.46 | 5029 | 0 |
| Oficina Maria Elena | city | Antofagasta | Chile | -22.34 | -69.66 | 4189 | 148 |
| Oficina Oriente | city | Antofagasta | Chile | -24.06 | -69.79 | 3349 | 745 |
| Oficina Pena Grande | city | Tarapaca | Chile | -20.12 | -69.78 | 3733 | 148 |
| Oficina Perseverancia | city | Antofagasta | Chile | -23.05 | -69.40 | 5029 | 0 |
| Oficina Ramírez | city | Tarapaca | Chile | -20.05 | -69.74 | 3579 | 66 |
| Oficina Resurrección | city | Tarapaca | Chile | -20.48 | -70.00 | 3349 | 149 |
| Oficina Rosario | city | Antofagasta | Chile | -25.24 | -69.79 | 6765 | 0 |
| Oficina Sacramento | city | Tarapaca | Chile | -20.42 | -69.83 | 3733 | 149 |
| Oficina Salinitas | city | Antofagasta | Chile | -25.04 | -69.95 | 6709 | 0 |
| Oficina San Andres | city | Tarapaca | Chile | -20.28 | -69.78 | 3382 | 149 |
| Oficina San Antonio | city | Tarapaca | Chile | -20.42 | -69.90 | 3727 | 149 |
| Oficina San Donato | city | Tarapaca | Chile | -20.11 | -69.75 | 3530 | 147 |
| Oficina San Esteban | city | Tarapaca | Chile | -20.32 | -69.75 | 3349 | 149 |
| Oficina San Pablo | city | Tarapaca | Chile | -20.46 | -69.85 | 3349 | 149 |
| Oficina Serena | city | Tarapaca | Chile | -20.30 | -69.78 | 3349 | 149 |
| Oficina Slavonia | city | Tarapaca | Chile | -20.85 | -69.73 | 3349 | 149 |
| Oficina Toco | city | Antofagasta | Chile | -22.07 | -69.61 | 3517 | 134 |
| Oficina Victoria | city | Tarapaca | Chile | -20.74 | -69.66 | 3349 | 149 |
| Oficina Virginia | city | Tarapaca | Chile | -20.48 | -69.80 | 3349 | 149 |
| Oficina Yugoslavia | city | Antofagasta | Chile | -24.06 | -69.83 | 3349 | 745 |
| Ofragia | city | Arica y Parinacota | Chile | -18.84 | -69.80 | 5892 | 0 |
| Ofrajia | city | Arica y Parinacota | Chile | -18.84 | -69.80 | 5892 | 0 |
| Ojanco Nuevo | city | Atacama | Chile | -27.52 | -70.34 | 2568 | 15194 |
| Ojeda | city | Antofagasta | Chile | -22.12 | -69.88 | 5029 | 0 |
| Ojo de Agua de la Ola | city | Atacama | Chile | -26.54 | -69.04 | 11876 | 119 |
| Ojos Buenos | city | Valparaiso | Chile | -33.03 | -71.13 | 935 | 8748 |
| Ojos de Agua | city | Libertador General Bernardo O'Higgins | Chile | -34.62 | -71.02 | 1131 | 7969 |
| Ojotas | city | Coquimbo | Chile | -31.93 | -70.27 | 12841 | 676 |
| Oliague | city | Antofagasta | Chile | -21.22 | -68.25 | 12024 | 0 |
| Olivar | city | Libertador General Bernardo O'Higgins | Chile | -34.23 | -70.88 | 1669 | 3161 |
| Olivar | city | Libertador General Bernardo O'Higgins | Chile | -34.21 | -70.82 | 1669 | 5104 |
| Olivar | city | Libertador General Bernardo O'Higgins | Chile | -34.23 | -70.83 | 1669 | 4916 |
| Olivar Alto | city | Libertador General Bernardo O'Higgins | Chile | -34.21 | -70.82 | 1669 | 5104 |
| Olivar Bajo | city | Libertador General Bernardo O'Higgins | Chile | -34.23 | -70.88 | 1669 | 3161 |
| Olivo | city | Tarapaca | Chile | -19.31 | -69.40 | 9228 | 0 |
| Olivos | city | Tarapaca | Chile | -19.31 | -69.40 | 9228 | 0 |
| Olla de Caldera | city | Coquimbo | Chile | -29.80 | -70.97 | 4189 | 596 |
| Olla de Caldera | city | Coquimbo | Chile | -29.61 | -70.85 | 5068 | 574 |
| Ollague | city | Antofagasta | Chile | -21.22 | -68.25 | 12024 | 0 |
| Ollitas | city | Antofagasta | Chile | -25.20 | -70.40 | 3349 | 0 |
| Olmue | city | Valparaiso | Chile | -33.00 | -71.19 | 830 | 28254 |
| Ontario | city | Araucania | Chile | -38.26 | -72.11 | 1778 | 636 |
| Oqueldan | city | Los Lagos | Chile | -43.11 | -73.54 | 6 | 527 |
| Orilla Itata | city | Biobio | Chile | -36.58 | -72.54 | 104 | 894 |
| Orilla La Vega | city | Libertador General Bernardo O'Higgins | Chile | -34.70 | -71.63 | 830 | 895 |
| Orilla Pencahue | city | Libertador General Bernardo O'Higgins | Chile | -34.45 | -71.15 | 889 | 30687 |
| Orilla de Itata | city | Biobio | Chile | -36.58 | -72.54 | 104 | 894 |
| Orilla de Pencahue | city | Libertador General Bernardo O'Higgins | Chile | -34.45 | -71.15 | 889 | 30687 |
| Orilla del Chaco | city | Antofagasta | Chile | -21.19 | -68.33 | 12588 | 0 |
| Orilla del Maule | city | Maule | Chile | -35.58 | -71.66 | 406 | 26219 |
| Orillas del Maule | city | Maule | Chile | -35.58 | -71.66 | 406 | 26219 |
| Oroco | city | Los Lagos | Chile | -41.43 | -72.76 | 88 | 298 |
| Orocoipo | city | Libertador General Bernardo O'Higgins | Chile | -34.20 | -70.75 | 1765 | 7079 |
| Orrego Abajo | city | Valparaiso | Chile | -33.38 | -71.42 | 931 | 3274 |
| Orrego Arriba | city | Valparaiso | Chile | -33.36 | -71.39 | 994 | 3219 |
| Ortolazas | city | Region Metropolitana | Chile | -33.67 | -71.22 | 830 | 73468 |
| Oscar | city | Magallanes y de la Antartica Chilena | Chile | -53.16 | -69.81 | 830 | 0 |
| Osorno | city | Los Lagos | Chile | -40.57 | -73.13 | 308 | 52481 |
| Ossa | city | Arica y Parinacota | Chile | -18.29 | -69.87 | 8389 | 447 |
| Ostiones | city | Los Lagos | Chile | -41.46 | -73.34 | 19 | 925 |
| Oudico | city | Chile | -40.25 | -73.15 | 862 | 4576 | |
| Ovaljė | city | Coquimbo | Chile | -30.60 | -71.20 | 859 | 51884 |
| Ovalle | city | Coquimbo | Chile | -30.60 | -71.20 | 859 | 51884 |
| Ovejeria Negra | city | Maule | Chile | -35.51 | -71.73 | 994 | 16559 |
| Ovejería | city | Maule | Chile | -35.31 | -72.31 | 830 | 6149 |
| Ovejería | city | Biobio | Chile | -37.42 | -73.36 | 830 | 16984 |
| Ovejería Negra | city | Biobio | Chile | -36.18 | -72.24 | 948 | 4998 |
| Ovejerías Negras | city | Biobio | Chile | -36.18 | -72.24 | 948 | 4998 |
| Oyahue | city | Antofagasta | Chile | -21.22 | -68.25 | 12024 | 0 |