| Nigua River | |
|---|---|
 | |
| Native name | Río Nigua (Spanish) |
| Location | |
| Commonwealth | Puerto Rico |
| Municipality | Salinas |
The Nigua River (Spanish: Río Nigua) is a river of Salinas, Puerto Rico, which flows south to Rincón Bay (Spanish: Bahía de Rincón) in Santa Isabel, Puerto Rico.