Geraldo José Rodrigues de Alckmin Filho is a Brazilian politician who served as the Governor of São Paulo from 2001 to 2006, and then again from 2011 to 2018. He was the Brazilian Social Democracy Party presidential nominee for the 2018 presidential election. He is usually described by political analysts and supporters as a pro-business centrist, closely associated with the political and financial establishment.
Alckmin was elected governor of São Paulo in 2010 and reelected in 2014, for the fourth time. He was previously his party's candidate for president of Brazil in the 2006 elections. He attended the Universidade de Taubaté's medical school, specializing in Anesthesiology, before going on to work in the São Paulo Public Service Hospital. He resigned on 6 April 2018 to run for president, for a second time, in the 2018 elections. His vice governor Márcio França held the office until the end of the term, on 1 January 2019.