José Antonio Dias Toffoli (born November 15, 1967) is a Brazilian jurist and current Justice and President of the Supreme Federal Court of Brazil.
Toffoli was born in Marília, São Paulo in 1967, the son of Luiz Toffoli and Sebastiana Seixas Dias Toffoli. He attended the law school of the University of São Paulo from 1986 to 1990, graduating with a bachelor's degree in law. While in college, Toffoli presided the student union. From 1996 to 2002 he was a professor of constitutional and family law at Centro Universitário de Brasília. In 1994 and 1995 Toffoli took examinations for a position as a judge in the state of São Paulo, but was twice rejected. Toffoli was then the legal representant for the Workers' Party (PT) in the presidential campaigns of Luiz Inácio Lula da Silva in 1998, 2002 and 2006. From March 2001 to December 2002 Toffoli was a co-owner of the law firm Toffoli & Telesca Advogados, and from 2005 to 2007 co-owned the firm Toffoli & Rangel Advogados. In 2007 Toffoli was nominated by President Lula to serve as solicitor general in his administration.
On 17 September 2009 President Lula nominated Dias Toffoli, his then-solicitor general, for the Supreme Federal Court seat vacated by the death of Justice Carlos Alberto Menezes Direito two weeks prior. Upon his nomination, Toffoli resigned as solicitor general and was replaced by Evandro Costa Gama. After being confirmed by the Senate to the Supreme Court, Toffoli took his seat as Justice on 23 October 2009, aged 41. He was, at the time, the youngest person to become Supreme Court justice since 1988, and remains as one of the youngest people to enter the court. He was the eighth Supreme Court nominee of President Lula. On 13 September 2018, Toffoli succeeded Justice Carmen Lúcia as the president of the Supreme Federal Court. The court's vice president in this term is Luiz Fux.