| Das Tropas River | |
| Pushpin Map: | Brazil |
| River System: | Tapajós |
| Source1 Location: | Pará state |
| Mouth Coordinates: | -6.1298°N -57.6332°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Das Tropas River (Portuguese: Rio das Tropas) is a river of Pará state in north-central Brazil. It is a right tributary of the Tapajós River; the mouth is located on the eastern side of the Tapajós about 200km (100miles) after the Juruena–Teles Pires junction.
The river flows through the Itaituba I National Forest, a sustainable use conservation area established in 1998.The lower part of the river flows through the Mundurucu Indigenous Territory.