- Source: 1990 Brazilian parliamentary election
- 1990 Brazilian parliamentary election
- 2022 Brazilian general election
- 1962 Brazilian parliamentary election
- 1986 Brazilian parliamentary election
- 1884 Brazilian parliamentary election
- 1982 Brazilian parliamentary election
- 2014 Brazilian general election
- 2010 Brazilian general election
- 2018 Brazilian general election
- List of annulled elections
Parliamentary elections were held in Brazil on 3 October 1990, the first held under the 1988 constitution. The Brazilian Democratic Movement Party emerged as the largest party, winning 108 of the 502 seats in the Chamber of Deputies and 8 of the 31 seats in the Senate.