The 1974 World Sportscar Championship season was the 22nd season of FIA World Sportscar Championship motor racing. It featured the 1974 World Championship for Makes and FIA Cup for GT Cars which were contested concurrently over a ten race series from 25 April to 9 November 1974. The World Championship for Makes, which was open to Group 5 Sports Cars and Group 4 GT Cars, was won by Matra and the FIA Cup for GT Cars by Porsche.

The World Sportscar Championship was the world series run for sports car racing by the FIA from 1953 to 1992. The championship evolved from a small collection of the most important sportscar, endurance, and road racing events in Europe and North America with dozens of gentleman drivers at the grid to a professional racing series where the world's largest automakers spent millions of dollars per year.