1966 Brazilian parliamentary election

Parliamentary elections were held in Brazil on 15 November 1966.[1] They were the first elections held after a military coup in 1964. In 1965 the military government of President Humberto de Alencar Castelo Branco dissolved all existing parties, and enacted a new electoral law that effectively limited the number of parties to two — the pro-government National Renewal Alliance (ARENA) and the opposition Brazilian Democratic Movement.

1966 Brazilian parliamentary election

15 November 1966

409 seats in the Chamber of Deputies 23 seats in the Senate

Party Leader % Seats Chamber of Deputies ARENA Artur da Costa e Silva 63.98 277 MDB 36.02 132 Senate ARENA Artur da Costa e Silva 56.63 19 MDB 43.37 4

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ARENA won a landslide victory, taking 277 of the 409 seats in the Chamber of Deputies and 19 of the 23 seats in the Senate. Voter turnout was 77.2% in the Chamber of Deputies election and 77.3% in the Senate election.[2]