The 1965 Italian Grand Prix was a Formula One motor race held at Monza on 12 September 1965. It was race 8 in the 1965 Formula One season.

The race was won by Jackie Stewart who took his first Grand Prix victory, whilst driving for the BRM team. His teammate - Graham Hill - finished second after a closely contested race between both the pair and pole-sitter and Jim Clark, who driving for the Lotus-Climax team, had secured the 1965 Drivers' Championship at the previous race. His fuel-pump failure with a handful of laps to go, and also the preceding retirement of Ferrari driver John Surtees, ensured that Dan Gurney of the Brabham-Climax team picked up the final position on the podium.