This is a list of rivers of Peru, that are at least partially in Peru. The Peruvian government has published guidelines for the preparation of river flow studies in April 2015.
The lengths of the following 10 rivers are according to a 2005 statistical publication by the Instituto Nacional de EstadÃÂstica e Informática listing the 44 most important rivers of Peru.
This list is arranged by drainage basin, with respective tributaries indented under each larger stream's name. Rivers longer than 400 kilometers are in bold font.