The 1963 Italian Grand Prix was a Formula One motor race held at Monza on September 8, 1963. It was the seventh of ten races in both the 1963 World Championship of Drivers and the 1963 International Cup for Formula One Manufacturers. At this race, Scottish driver Jim Clark clinched the World Championship crown with three races to go, the first time anyone had done so.

The 1963 Formula One season was the 17th season of FIA Formula One motor racing. It featured the 14th World Championship of Drivers, the 6th International Cup for F1 Manufacturers, and numerous non-championship Formula One races. The World Championship was contested over ten races between 26 May and 28 December 1963.