Democratic Labour Party (Brazil)

The Democratic Labour Party (Portuguese: Partido Democrático Trabalhista, PDT) is a centre-left political party in Brazil. It defends laborist, democratic socialist, social-democratic and nationalist ideologies.

The Democratic Labour Party (PDT) was founded in 1979 during the redemocratization in Brazil at the end of the Brazilian military dictatorship by Leonel Brizola as a successor of the original Brazilian Labour Party (PTB), continuing the legacy of João Goulart and Getúlio Vargas, while also incorporating and syncretizing elements of European social-democracy he encountered during his exile. However, Brizola was unable to use the name Brazilian Labour Party (PTB), as the military government awarded it to a rival group led by Ivete Vargas, and he established the PDT instead, officially registered in 1980. After Brizola's death in 2004, the party has been led by Carlos Lupi. Ciro Gomes joined the party in 2015, becoming its main national figure and presidential candidate in 2018 and 2022, leaving the party in 2025.

It was the major left-wing party in Brazil until the rise of the Workers' Party (PT) in the late 1980s and early 1990s. Since then, the two parties have maintained a complex and often contentious relationship, alternating between cooperation and rivalry as both sought leadership of the Brazilian left. The PDT has supported PT-led governments at times but has also positioned itself as an independent centre-left alternative. At the 2006, 2018 and 2022 elections the party disputed the presidency, particularly under Ciro Gomes, promoting a nationalist and developmentalist platform distinct from that of the PT. The party also has opposed the Impeachment of Dilma Rousseff, and the governments of Michel Temer and Jair Bolsonaro.

The party joined the Socialist International in 1986, and uses the fist and rose as its symbol. Its TSE Identification Number is 12, and members and sympathizers are called "pedetistas".