Cubatão is a city located in the state of São Paulo, Brazil. It is situated approximately 12 kilometers from the seaport of Santos, which serves as the largest port in Latin America. The city is an integral part of the Metropolitan Region of the Baixada Santista.
The municipality covers an area of 143.649 km² and has a population of 112,476. Cubatão is characterized by its significant industrial presence, hosting facilities for oil refining, steel mills, and fertilizer production.