1965 in Brazil

Acre: Vacant
Alagoas: Luis Cavalcante
Amazonas: Artur César Ferreira Reis
Bahia: Lomanto Júnior
Ceará: Virgilio Távora
Espírito Santo: Francisco Lacerda de Aguiar
Goiás:
- Carlos de Meira Mattos (until 23 January)
- Emílio Rodrigues Ribas Jr (from 23 January)
Guanabara:
- Carlos Lacerda (until 11 October)
- Raphael de Almeida Magalhães (11 October–5 December)
- Francisco Negrão de Lima (from 5 December)
Maranhão: Newton de Barros Belo
Mato Grosso: Fernando Corrêa da Costa
Minas Gerais: José de Magalhães Pinto
Pará: Jarbas Passarinho
Paraíba: Pedro Gondim
Paraná:
- Ney Braga (until 17 November)
- Antônio Ferreira Rüppel (17 November-20 November)
- Algacir Guimarães (from 20 November)
Pernambuco: Paulo Pessoa Guerra
Piauí: Petrônio Portella
Rio de Janeiro: Pablo Torres
Rio Grande do Norte: Aluízio Alves
Rio Grande do Sul: Ildo Meneghetti
Santa Catarina: Celso Ramos
São Paulo: Ademar de Barros
Sergipe: Celso Carvalho

Alagoas: Teotônio Brandão Vilela
Bahia: Orlando Moscoso
Ceará: Joaquim de Figueiredo Correia
Espírito Santo: Rubens Rangel
Goiás: Vacant
Maranhão: Alfredo Salim Duailibe
Mato Grosso: Jose Garcia Nieto
Minas Gerais: Clóvis Salgado da Gama
Pará: Agostinho de Meneses de Monteiro
Paraíba: André Avelino de Paiva Gadelha
Paraná:
- Afonso Alves de Camargo Neto (until 17 November)
- Vacant (17 November-20 November)
- Alípio Ayres de Carvalho (from 20 November)
Pernambuco: Vacant
Piauí: João Clímaco d'Almeida
Rio de Janeiro: Teotônio Araújo
Rio Grande do Norte: Teodorico Bezerra
Santa Catarina: Armindo Marcílio Doutel de Andrade
São Paulo: Laudo Natel
Sergipe: Vacant

27 March: Presidents Castelo Branco of Brazil and Alfredo Stroessner of Paraguay inaugurate the Friendship Bridge over the Paraná river, which connects the two countries.^[1]
31 March: Pico da Neblina, the highest mountain in Brazil (9,827 ft), is climbed for the first time.^[2]

8 April: The National Congress approves the amendment of direct elections in eleven Brazilian states.^[3]
26 April: Rede Globo is launched in Rio de Janeiro. It is the largest television network in the country today.^[4]

3 October: Direct elections for mayors, governors and senators are held in eleven states.^[5]^[6]
27 October: President Humberto Castelo Branco issues Institutional Act Number Two (AI-2), which abolishes political parties.^[7]

Incumbents