Marco Aurélio Mendes de Farias Mello (born 12 July 1946, Rio de Janeiro) is a Brazilian former justice of the Supreme Federal Court of Brazil, appointed to the position by his cousin, former President of Brazil Fernando Collor de Mello.

In a controversial decision in October 2012, Marco Aurélio Mello released from jail Luiz André Ferreira da Silva, a politician of the city of Rio de Janeiro who had been arrested for involvement with the Milícia Mafia in Rio de Janeiro.

[4] In 2020, Marco Aurélio Mello released Brazilian drug warlord André do Rap.

The decision was reversed just a few hours later by the President of the Brazilian Supreme Court who ordered that the drug warlord be put back in jail, but by then he had become a fugitive.

[5] Marco Aurélio retired from the STF on 9 July 2021.