Brazilian Socialist Party

Brazilian Socialist Party
Partido Socialista Brasileiro
PresidentJoão Henrique Campos
FoundedCurrent:
2 July 1989 (1989-07-02)
Historical:
6 August 1947 (1947-08-06)
Split fromNational Democratic Union
HeadquartersSCLN 304, bloco "A", Entrada 63, sobreloja
Brasília, Brazil
NewspaperFolha Socialista (1947–1964)
Youth wingJuventude Socialista Brasileira (JSB)
Women's wingMulheres Socialistas
LGBT wingLGBT Socialista
Black wingNegritude Socialista Brasileira (NSB)
Membership648,012
Ideology
Political positionCentre to centre-left
Historical:
Left-wing
Regional affiliationSão Paulo Forum (1991–2019)
International affiliationProgressive Alliance
Colours  Red
  Orange
  Yellow
Slogan"Socialism and Freedom"
AnthemThe Internationale
TSE Identification Number40
Chamber of Deputies
16 / 513
Federal Senate
4 / 81
Governorships
3 / 27
State Assemblies
71 / 1,059
Mayors
327 / 5,566
City councillors
3,484 / 51,748
Website
www.psb40.org.br

The Brazilian Socialist Party (Portuguese: Partido Socialista Brasileiro, PSB) is a center-left political party in Brazil. It was founded in 1947, before being abolished by the military regime in 1965 and was refounded in 1989 after the re-democratisation of Brazil.

The PSB is considered a center-left and moderate party, supporting the governments of presidents Itamar Franco, Luiz Inácio Lula da Silva and Dilma Rousseff, while it opposed the governments of Fernando Collor, Michel Temer (interim) and Jair Bolsonaro. The party also maintained an independent or partially oppositional stance at times toward Fernando Henrique Cardoso and the second term of Dilma Rousseff. It has also elected Geraldo Alckmin as Vice President of Brazil in 2023.

The original PSB (1947–1965) was influenced by European social democracy and progressive Catholic movements, counting prominent intellectuals such as João Mangabeira among its founders. The modern PSB was refounded in 1989 under the leadership of Miguel Arraes, linking the party’s historical socialist ideals with Brazil’s post-dictatorship democratic resurgence. Ideologically, the PSB defines itself as socialist and social-democratic, but it has frequently adopted a pragmatic stance, positioning itself as a catch-all party within Brazil’s center-left spectrum.