| Catamayo River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Ecuador |
| Length: | 80.15 km |
| Source1 Coordinates: | -4.2861°N -80.1414°W |
The Catamayo River is a river in Ecuador. It is one of the most important rivers in the Loja Province. It flows into the Pacific Ocean.