| Frío River | |
| Subdivision Type1: | Commonwealth |
| Subdivision Name1: | Puerto Rico |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Barranquitas |
| Source1 Elevation: | 1050 ft |
The Frío River (Spanish; Castilian: Río Frío) is a river in Barranquitas and Comerío, Puerto Rico.