Events in the year 1913 in Brazil.
Incumbents
Federal government
President: Marshal Hermes da Fonseca
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 Rio Grande do Norte: Alberto Maranhão 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 (in Eu, France) - Prince Pedro Gastão of Orléans-Braganza, claimant to the Brazilian throne (died 2007) 1 October - Hélio Gracie, martial artist, founder of Brazilian Jiu-Jitsu (died 2009) 12 November - Teleco, footballer (died 2000)
Deaths
21 January - Aluísio Azevedo, novelist, caricaturist, diplomat, playwright and short story writer (born 1857) 11 August - Brasílio Itiberê da Cunha, composer, lawyer and diplomat (born 1846)