João Vaccari Neto (born October 30, 1958, São Paulo) is a Brazilian banker and labor union leader.

In 2002, he was elected as an alternate senator[citation needed] for São Paulo on the ticket headed by Aloizio Mercadante.

[2] On June 22, 2015 Vaccari was convicted of bribery, money laundering and criminal association, then sentenced to 15 years and four months in prison.

[3][4] On June 27, 2017 the 8th panel of the federal court for the 4th region upheld his appeal[clarification needed] of this conviction.

Judge Sergio Moro, who had found him guilty in four other cases and sentenced him to a total of more than thirty years, had cited campaign donations to the PT from construction contractors that coincided very closely to successful bids on contracts with the state-owned oil company Petrobras.