The 1983 Italian Grand Prix was a Formula One motor race held at Monza on 11 September 1983. It was the thirteenth race of the 1983 Formula One World Championship. The 52-lap race was won by Nelson Piquet, driving a Brabham-BMW, with René Arnoux second in a Ferrari and Eddie Cheever third in a Renault. Drivers' Championship leader Alain Prost retired with a turbo failure midway through the race, allowing Piquet and Arnoux to close to within five and two points of him respectively in the championship.