Fernando Affonso Collor de Mello is a Brazilian politician who served as the 32nd president of Brazil from 1990 to 1992, when he resigned in a failed attempt to stop his impeachment trial by the Brazilian Senate. Collor was the first President democratically elected after the end of the Brazilian military dictatorship. He became the youngest president in Brazilian history, taking office at the age of 40. After he resigned from the presidency, the impeachment trial on charges of corruption continued. Collor was found guilty by the Senate and disqualified from holding elected office for eight years (1992–2000). He was later acquitted of ordinary criminal charges in his judicial trial before Brazil's Supreme Federal Court, for lack of valid evidence.

The president of Brazil, officially the president of the Federative Republic of Brazil or simply the President of the Republic, is the head of state and head of government of Brazil. The president leads the executive branch of the federal government and is the commander-in-chief of the Brazilian Armed Forces.