| Guaonica River | |
| Subdivision Type1: | Commonwealth |
| Subdivision Name1: | Puerto Rico |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Utuado |
| Source1 Elevation: | 486 ft |
The Guaonica River (Spanish; Castilian: Río Guaonica) is a river of Utuado, Puerto Rico.