Rio Envira is a river in Acre state in Brazil.

The Rio Jaminauá is one of its tributaries.

[1] The river defines the northwest boundary of the 231,555 hectares (572,180 acres) Santa Rosa do Purus National Forest, a sustainable use conservation unit created in 2001.

It flows in a north of northeast direction from the park, passing under the BR-364 highway and flowing north into Amazonas state, where it joins the Tarauacá just south of the settlement of Envira.

[2] This article related to a river in Acre is a stub.