| Das Antas River | |
| Source1 Location: | Aparados da Serra National Park |
| Mouth: | Taquari River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
| Length: | 390km (240miles) |
| Source1 Elevation: | 1200m (3,900feet) |
| Mouth Elevation: | 100m (300feet) |
The Das Antas River (Portuguese: Rio das Antas) is a river of Rio Grande do Sul state in southern Brazil. Below its junction with the Carreiro it forms the Taquari River.