The 1971 International Championship for Makes season was the 19th season of FIA World Sportscar Championship motor racing. It was open to Group 6 Sports Prototypes, Group 5 Sportscars, and Group 4 Special GT Cars and was contested over an eleven race series which ran from 10 January to 24 July 1971. Porsche won the championship, and the German manufacturer also won the International Cup for GT Cars.

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.