Ivan de Souza Monteiro (born 1960, in Manaus)[1] is a Brazilian electronic engineer, former president of the oil state company Petrobras.

[2] Previously, Monteiro was CFO of the company.

Before heading Petrobras, Monteiro worked in Banco do Brasil.

Monteiro had been vice-president of the Financial Management and Affairs with Investors of BB, in office between 2009 and 2015.

[3] In June 2018, after Pedro Parente's departure, Monteiro was chosen by the Petrobras Administration Council as acting president, later nominated by Michel Temer as president.