1912 in Brazil

Incumbents

Federal government

• President: Marshal Hermes da Fonseca
• Vice President: Venceslau Brás

Governors

• Alagoas:
• * till 13 March: Euclid Vieira Malta
• * 13 March - 12 June: Macário das Chagas Rocha Lessa
• * from 12 June: Clodoaldo da Fonseca
• Amazonas: Antônio Clemente Ribeiro Bittencourt
• Bahia: Aurélio Rodrigues Viana, then Bráulio Xavier, then José Joaquim Seabra
• Ceará:
• * till 24 January: Antônio Nogueira Accioli
• * 24 January - 12 July Antônio Frederico de Carvalho Mota
• * 12 July - 14 July Belisário Cícero Alexandrino
• * from 14 July: Marcos Franco Rabelo
• Goiás:
• * until March 30: Urbano Coelho de Gouveia
• * 30 March - 24 May: Joaquim Rufino Ramos Jubé
• * from 24 May: Herculano de Sousa Lobo
• Maranhão: Luís Antônio Domingues da Silva
• Mato Grosso: Joaquim Augusto da Costa Marques
• Minas Gerais: Júlio Bueno Brandão
• Pará: João Antônio Luís Coelho
• Paraíba:
• * until 22 October: João Lopes Machado
• * from 22 October: João Castro Pinto
• Paraná:
• * Francisco Xavier da Silva
• * Carlos Cavalcanti de Albuquerque
• Pernambuco: Emídio Dantas Barreto
• Piauí:
• * until 1 July: Antonino Freire da Silva
• * from 1 July: Miguel de Paiva Rosa
• Governors of [Rio Grande do Norte|Rio Grande do Norte]: Alberto Maranhão
• Rio Grande do Sul: Carlos Barbosa Gonçalves
• Santa Catarina:
• São Paulo:
• Sergipe:

Vice governors

• Rio Grande do Norte:
• São Paulo:

Events

• 20 September - Clube de Regatas Brasil is founded.
• October - Beginning of the Contestado War, a dispute between settlers and landowners.
• 19 December - The Federal University of Paraná is established.
• 29 December - The federal government sends in 200 federal troops to deal with ongoing trouble in the State of Santa Catarina.

Births

• 9 April - Amácio Mazzaropi, actor
• 24 April - Aymoré Moreira, footballer
• 13 June - Avelar Brandão Vilela, Archbishop of São Salvador da Bahia
• 25 June - Carvalho Leite, footballer
• 29 July - Max Wolff, sergeant killed in World War II
• 6 August - Adoniran Barbosa, singer and composer
• 10 August - Jorge Amado, writer
• 5 October – João Marinho Neto, Supercentenarian, World’s Oldest living man from 25 November 2024.
• 13 December - Luiz Gonzaga, singer, songwriter, and poet
• 22 December - Alberto Zarzur, footballer

Deaths

• 22 October - José Maria de Santo Agostinho, mystic