Santa Rosa de Yavarí is an Amazonian town in the Mariscal Ramón Castilla Province in the Loreto Region of Peru.

The town is in the international Tres Fronteras area of the Upper Amazon region, in the western Amazon basin.

The cities of Leticia (Colombia) and Tabatinga (Brazil) are across from it on the 'mainland' river banks of the Amazon.

The town serves as a checkpoint and crossing point for the Brazil-Peru and Brazil-Colombia borders.

This Loreto Region geography article is a stub.