| Cotahuasi Subbasin Landscape Reserve | |
| Alt Name: | Reserva Paisajística Sub Cuenca del Cotahuasi |
| Iucn Category: | V |
| Map: | Peru |
| Relief: | 1 |
| Location: | Arequipa Region, La Unión Province, Peru |
| Coordinates: | -15.051°N -72.92°W |
| Area: | 4905.5km2 |
| Established: | May 18, 2005 |
The Cotahuasi Subbasin Landscape Reserve (es|Reserva Paisajística Sub Cuenca del Cotahuasi) is a protected area in Peru located in the Arequipa Region, La Unión Province. It protects part of the Central Andean puna and Sechura Desert ecoregions.[1]