Guaratinguetá is a municipality in the state of São Paulo in Brazil. It is part of the Metropolitan Region of Vale do Paraíba e Litoral Norte. The population is 122,505 in an area of 752.64 km2. It is located in the region of Vale do Paraíba; prominent individuals from the area include Saint Frei Galvão, Brazilian President Rodrigues Alves and the cardiologist Dr Euryclides de Jesus Zerbini. The name of the city derives from the words in the Tupi language: gûyra (heron), tinga (white) and etá, resulting in Gûyrating'etá.