奥尔卡火山是南美洲的火山，位于玻利维亚和智利接壤的边境，属于安第斯山脉的一部分，海拔高度5,407米，最近一次火山喷发在1867年发生。

• Population data and map of San Pedro de Quemes Municipality

Olca is a stratovolcano on the border of Chile and Bolivia. It lies in the middle of a 15 km long ridge composed of several stratovolcanos. Cerro Minchincha lies to the west and Paruma to the east. It is also close to the pre-Holocene Cerro Paruma. It is andesitic and dacitic in composition, with lava flows extending several kilometres north of the peak. The only activity from the ridge during historical times was a flank eruption from 1865 to 1867. The exact source of this eruption is unclear.