Brazilian legislative election, 1966

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

ARENA won a crushing 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]


Chamber of Deputies[edit]

Brazilian Chamber of Deputies, 1966 election.svg
Party Votes % Seats +/–
National Renewal Alliance 8,731,638 64.0 277 New
Brazilian Democratic Movement 4,915,470 36.0 132 New
Invalid/blank votes 3,638,448
Total 17,285,556 100 409 0
Registered voters/turnout 22,387,251 77.2
Source: Nohlen


Party Votes % Seats
National Renewal Alliance 7,719,382 56.6 19
Brazilian Democratic Movement 5,911,361 43.4 4
Invalid/blank votes 3,628,855
Total 17,259,598 100 23
Registered voters/turnout 22,335,242 77.3
Source: Nohlen


  1. ^ Nohlen, D (2005) Elections in the Americas: A data handbook, Volume II, p173 ISBN 978-0-19-928358-3
  2. ^ Nohlen, pp194-211