Redenção da Serra is a municipality in the eastern part of the state of São Paulo in Brazil. It is part of the Metropolitan Region of Vale do Paraíba e Litoral Norte. The population is 3,839 in an area of 309.44 km2. The elevation is 730 m. The municipality contains part of the 292,000 hectares Mananciais do Rio Paraíba do Sul Environmental Protection Area, created in 1982 to protect the sources of the Paraíba do Sul river.