Salto Augusto is a dramatic waterfall on the Rio Juruena in Mato Grosso, Brazil, widely regarded as one of the most spectacular natural sites in the Amazon.

It falls within Juruena National Park, an IUCN Category II protected area whose core conservation objectives include preserving the scenic and ecological integrity of the Juruena's major waterfalls.

The falls hold deep significance for the Apiaka people, for whom the site is considered sacred. Salto Augusto also marked the highest point reached by the historic Langsdorff expedition.

The surrounding park protects a biologically rich stretch of the southern Amazon, sheltering endangered species such as the jaguar, giant otter, and harpy eagle.

Sport fishing is among the activities pursued in the area, supported in part through partnerships with local indigenous communities. The waterfall lies near the community of Barra de São Manoel.