| Maricao River | |
| Subdivision Type1: | Commonwealth |
| Subdivision Name1: | Puerto Rico |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Maricao |
| Source1 Elevation: | 581 ft. |
The Maricao River (Spanish; Castilian: Río Maricao) is a river of Maricao and Mayagüez, Puerto Rico.