Ratos de Porão (Portuguese for "Basement Rats") is a Brazilian crossover thrash/hardcore punk band from São Paulo. They were formed in 1981, toured South America, North America, and Europe and still continue to play today. Their core lineup of João Gordo on vocals and Jão on drums and later guitars has remained since virtually the band's beginning.

Lead singer João Benedan (better known as João Gordo) is a former well-known VJ on MTV Brasil, working now at Rede Record in a comedy TV show called: "Legendários" (Portuguese for "Legendaries").