The 1974 Canadian Grand Prix was a Formula One motor race held at Mosport Park on 22 September 1974. It was race 14 of 15 in 1974 Formula One season.

Niki Lauda was on course for victory, until running over debris on lap 67, causing his Ferrari to spin into barriers, having led the whole race until that point. He also set the fastest lap of the race. Jacques Laffite was also forced out due to picking up a puncture, possibly caused by the same debris on the circuit. Emerson Fittipaldi grabbed the advantage, and led for the rest of the race. It was his 12th career victory, and the last of the season for the McLaren driver. This was the first Grand Prix race for young Austrian Helmut Koinigg, who would lose his life during the next race at Watkins Glen.