The Curuá Una River is a river of Pará state in north-central Brazil, a right tributary of the Amazon River.

The river flows through the Tapajós-Xingu moist forests ecoregion.

[1] Part of the river basin is in the Tapajós National Forest, a 549,067 hectares (1,356,770 acres) sustainable use conservation unit created in 1974.

The Moju River, a tributary of the Curuá-Una, rises in the national forest.

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