Hélio Castroneves at the Indianapolis Motor Speedway for Carb Day for the 2009 Indianapolis 500.

Hélio Castroneves (born Hélio Castro Neves; May 10, 1975 in São Paulo, Brazil) is a Brazilian auto racing driver currently competing in the North American IndyCar Series. In IndyCar competition, Castroneves has 14 wins and 28 poles, and has never placed lower than sixth in the standings in a complete season of racing. Prior to IndyCar, Castroneves competed in Champ Car racing with a highest championship points finish of fourth.

Starting his career in karting, Castroneves later raced in the Paul Stewart Racing team, and finished third in the 1995 British Formula Three Championship.