Miss Brazil 1966 was the 13th edition of the Miss Brasil pageant, held on June 25, 1966 at the Maracanãzinho Gymnasium in Rio de Janeiro. Miss Brasil 1965 Maria Raquel de Andrade (Guanabara) crowned Ana Cristina Ridzi (Guanabara). The winner went to Miss Universe 1966, the runner-up to Miss World 1966, and the third-place finisher to Miss International 1966. The pageant was broadcast by TV Tupi.