| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oqueldán | city | Region de Los Lagos | Chile | -43.09 | -73.52 | 3 | 408 |
| Osorno | city | Region de Los Lagos | Chile | -40.57 | -73.15 | 285 | 52831 |
| Ostiones | city | Region de Los Lagos | Chile | -41.45 | -73.38 | 167 | 1114 |
| Oudico | city | Region de Los Lagos | Chile | -40.25 | -73.15 | 862 | 4600 |