R odolfo Villela Marino is a Brazilian billionaire and a member of one of the country's most powerful and enduring banking dynasties. He is a great-grandson of the founder of Banco Itaú. His family is one of the controlling shareholders of Itaú Unibanco Holding, the largest bank in Latin America, which was formed by the 2008 merger of Banco Itaú with Unibanco.

While his family's wealth is inherited, Rodolfo has been active in the family's business interests. His vast fortune is derived from his inherited stake in the massive and highly profitable banking conglomerate. He and his family are major philanthropists, with a particular focus on education and social development in Brazil.