Luiz Tadeu Razia Filho is a Brazilian businessman and former racing driver.

Fórmula 3 Sudamericana was a South American Formula Three championship. It was inaugurated in 1987 and primarily held races in Brazil and Argentina, with a small number of events held in other countries across the continent. Its most notable graduates include former Formula One drivers Nelson Piquet Jr., Ricardo Zonta and Christian Fittipaldi, four-time Indianapolis 500 winner Hélio Castroneves, and Champ Car champion and former F1 driver Cristiano da Matta. The series was replaced for 2014 by the Brazilian Formula Three Championship, which focuses on Brazilian circuits and drivers.