| Tarunã River | |
| Source1 Location: | Mato Grosso do Sul state |
| Mouth: | Paraguay River |
| Mouth Coordinates: | -21.5857°N -57.9121°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Tarunã River is a river of Mato Grosso do Sul state in southwestern Brazil.