The 1955 Italian Grand Prix was a Formula One motor race held at Autodromo Nazionale Monza, in Monza, Italy on 11 September 1955. It was the seventh and final round of the 1955 World Drivers' Championship. In the wake of the 1955 Le Mans disaster, the championship was still open after the British Grand Prix; although after that race (with the French Grand Prix already having been cancelled) the German, Swiss and Spanish Grands Prix were all cancelled. This meant that Fangio won the world driver's championship for the 3rd time and the 2nd time in succession.