1913 in Brazil

Incumbents

Federal government

• President: Marshal Hermes da Fonseca
• President of Brazil|Vice President]: Venceslau Brás

Governors

• Alagoas: Clodoaldo da Fonseca
• Amazonas: Jônatas de Freitas Pedrosa
• Bahia: José Joaquim Seabra
• Ceará: Marcos Franco Rabelo
• Goiás:
• * until June 10: Herculano de Sousa Lobo
• * June 10 - July 31: Joaquim Rufino Ramos Jubé
• * From July 31: Olegário Herculano da Silva Pinto
• Maranhão: Luís Antônio Domingues da Silva
• Mato Grosso: Joaquim Augusto da Costa Marques
• Minas Gerais: Júlio Bueno Brandão
• Pará:
• * until February 1: João Antônio Luís Coelho
• * from February 1: Enéas Martins
• Paraíba: João Castro Pinto
• Paraná: Carlos Cavalcanti de Albuquerque
• Pernambuco: Emídio Dantas Barreto
• Piaui: Miguel de Paiva Rosa
• Governors of [Rio Grande do Norte|Rio Grande do Norte]: Alberto Maranhão
• List of Governors of [Rio Grande do Sul|Rio Grande do Sul]:
• * until 25 January: Carlos Barbosa Gonçalves
• * from 25 January: Antônio Augusto Borges de Medeiros
• Santa Catarina:
• São Paulo: Francisco de Paula Rodrigues Alves
• Sergipe:

Vice governors

• Rio Grande do Norte:
• São Paulo:

Events

• 24 January - Borges de Medeiros begins his second term as President of Rio Grande do Sul, taking over from Carlos Barbosa Gonçalves.
• 11 July - Brazil's foreign minister, Lauro Müller, entertains US dignitaries on board the battleship Minas Geraes during his visit to New York.
• 12 December - Roosevelt–Rondon Scientific Expedition: Following a speaking tour in Brazil and Argentina, former US President Theodore Roosevelt meets up with Cândido Rondon to embark on a joint exploration of the "River of Doubt".

Births

• 12 January - Rubem Braga
• 19 February - Prince Pedro Gastão of Orléans-Braganza, claimant to the Brazilian throne
• 1 October - Hélio Gracie, martial artist, founder of Brazilian Jiu-Jitsu
• 12 November - Teleco, footballer

Deaths

• 21 January - Aluísio Azevedo, novelist, caricaturist, diplomat, playwright and short story writer
• 11 August - Brasílio Itiberê da Cunha, composer, lawyer and diplomat