| Ancasi | |
| Elevation M: | 5000 |
| Elevation Ref: | [1] |
| Range: | Andes, Huanzo |
| Location: | Peru, Arequipa Region |
| Map: | Peru |
| Map Size: | 200 |
| Coordinates: | -14.8808°N -72.3606°W |
Ancasi (possibly from Quechua for cobalt salt used for dyeing)[2] is a mountain in the Huanzo mountain range in the Andes of Peru, about 5000m (16,000feet) high. It is situated in the Arequipa Region, La Unión Province, Puyca District. It lies southwest of Jatun Huaychahui. Chuañuma is east of Ancasi.[1]