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 200 km (120 mi) after the Juruena–Teles Pires junction.

The river flows through the Itaituba I National Forest, a 220,639 hectares (545,210 acres) sustainable use conservation area established in 1998.

[1] The lower part of the river flows through the Mundurucu Indigenous Territory.

This article related to a river in Pará, Brazil is a stub.