Events in the year 1946 in Brazil.
Governors
- Alagoas: Antonio Guedes de Miranda
- Amazonas: Siseno Sarmento
- Bahia: João Vicente Bulcão Viana then Guilherme Carneiro da Rocha Marback then Cândido Caldas
- Ceará:
- till 10 January: Benedito Augusto Carvalho dos Santos
- 10 January-21 January: Tomás Pompeu Filho
- 21 January-16 February: Acrísio Moreira da Rocha
- 16 February-28 October: Pedro Firmeza
- from 28 October: José Machado Lopes
- Espírito Santo:
- till 27 February: Octávio de Carvalho Lemgruber
- 27 February-8 June: Aristides Alexandre Campos
- 8 June-14 October: Ubaldo Ramalhete Maia
- from 14 October: Moacir Ubirajara da Silva
- Goiás:
- till 18 February: Eládio de Amorim
- 18 February-4 August: Filipe Antônio Xavier de Barros
- 4 August-18 August: Paulo Fleury da Silva e Sousa
- 18 August-12 September: Filipe Antônio Xavier de Barros
- 12 September-22 October: Belarmino Cruvinel
- from 22 October: Joaquim Machado de Araújo
- Maranhão:
- Mato Grosso: Olegário de Barros then Jose Marcelo Moreira
- Minas Gerais:
- till 3 February: Nísio Batista de Oliveira
- 3 February-14 August: João Tavares Corrêa Beraldo
- 14 August-16 November: Júlio Ferreira de Carvalho
- 16 November-20 December: Noraldino Lima
- from 20 December: Alcides Lins
- Pará:
- till 9 February: Manuel Maroja Neto
- 9 February-9 December: Otávio Bastos Meira
- from 9 December: José Faustino Santos
- Paraíba:
- till 13 February: Severino Montenegro
- 13 February-20 September: Odon Bezerra Cavalcanti
- from 20 September: José Gomes da Silva
- Paraná: Clotário de Macedo Portugal then Brasil Pinheiro Machado then Mário Gomes da Silva
- Pernambuco:
- till 7 February: José Neves Filho
- 7 February-7 August: José Domingues da Silva
- from 7 August: Demerval Peixoto
- Piaui: Hugo Silva
- Rio de Janeiro:
- till 20 March: Benedito Martins Napoleão do Rego
- 20 March-3 September: José Vitorino Correia
- 3 September-11 October: Manuel Sotero Vaz da Silveira
- from 11 October: Teodoro Sobral
- Rio Grande do Norte: Miguel Seabra Fagundes (till 13 February); Ubaldo Bezerra de Melo (from 13 February)
- Rio Grande do Sul: Samuel Figueiredo da Silva
(till 7 February); Pompílio Cylon Fernandes Rosa (from 7 February)
- Santa Catarina: Luís Gallotti (till 8 February); Udo Deeke (from 8 February)
- São Paulo: José Carlos de Macedo Soares
- Sergipe: Hunald Santaflor Cardoso (till 31 March); Antônio de Freitas Brandão (from 31 March)
Incoming President Eurico Gaspar Dutra
Pereira, Aldo (1987). Breve História da Aviação Comercial Brasileira. Rio de Janeiro: Europa. pp. 303–304.
Laban, Brian (1981). Winners : a who's who of motor racing champions. London: Orbis. p. 56. ISBN 9780856130427.
Bulletin of the Pan American Union. The Union. 1946. p. 300.