Marco Aurélio Mendes de Farias Mello (born 12 July 1946, Rio de Janeiro) is a Brazilian justice of the Supreme Federal Court of Brazil, and member of the family of the former President of Brazil Fernando Collor de Mello.
In a controversial decision, Marco Aurélio Mello has recently (October, 2012) decided to interrupt the imprisonment of Luiz André Ferreira da Silva (aka Deco), a politician of the city of Rio de Janeiro who has been arrested for involvement with the Milícia mafia at Rio de Janeiro.