Miss Brasil 1978 was the 25th edition of the Miss Brasil pageant, held on 1978-06-16 at the Ginásio Presidente Médici in Brasília, Brazil. Miss Brasil 1977 Cássia Janys Silveira crowned Suzana Araújo dos Santos of Minas Gerais as the winner. The winner competed at Miss Universe 1978; the runner-up went to Miss World 1978, and the third place to Miss International 1978. The event was broadcast by Rede Tupi, reportedly not listed in the network’s schedule for that date.