| Cotahuasi | |
|---|---|
| Village | |
| Country |  Peru | 
| Region | Arequipa | 
| Province | La Unión | 
| District | Cotahuasi | 
| Government | |
| • Mayor | Justo Pastor Totocayo Garate | 
| Elevation | 2,683 m (8,802 ft) | 
| Time zone | UTC-5 (PET) | 
Cotahuasi is a town in Southern Peru, capital of the province La Unión in the region of Arequipa.
15°12′47″S 72°53′18″W / 15.21306°S 72.88833°W / -15.21306; -72.88833