Preto River or Prêto River may refer to these rivers in Brazil:
Amapá Preto River (Amapá)
Amazonas Preto da Eva River Preto River (Padauari River tributary) Preto River (Unini River tributary)
Bahia Preto River (Bahia, Atlantic Ocean) Preto River (Bahia, Grande River tributary) Preto River (Bahia, Jequié River tributary)
Espírito Santo Preto River (Cricaré River tributary) Preto River (Espírito Santo), Itabapoana River tributary Preto River (Itabapoana River tributary), west of the above Preto River (Itaúnas River tributary) Preto River (Mariricu River tributary)
Goiás Preto River (Paracatu River tributary) Preto River (Paranaíba River tributary) Preto River (Tocantins River tributary)
Maranhão Preto River (Maranhão)
Minas Gerais Preto River (Araçuaí River tributary) Preto River (Paraibuna River tributary)
Paraíba Preto River (Paraíba)
Paraná Preto River (Paraná)
Pernambuco Preto River (Pernambuco)
Rio de Janeiro Preto River (Piabanha River tributary) Preto River (Ururaí River tributary)
Rondônia Preto de Candeias River Preto do Crespo River Preto River (Rondônia)
Roraima Preto River (Roraima)
Santa Catarina Preto River (Negro River tributary) Preto River (Do Peixe River tributary)
São Paulo Preto River (São Paulo)
See also Preto (disambiguation) Rio Preto (disambiguation) Río Prieto (disambiguation)