The 1975 24 Hours of Le Mans was the 43rd Grand Prix of Endurance, and took place on 14 and 15 June 1975. Colloquially called the “Le Mans Economy Run”, stringent refuelling regulations were put in place. Unable to match the requisite 7mpg fuel economy the manufacturer teams from Ferrari, Alfa Romeo withdrew and Matra had retired from the sport at the end of 1974. Therefore, this only left Gulf and Ligier as front-running works-teams.

The 24 Hours of Le Mans is an endurance-focused sports car race held annually near the town of Le Mans, France. It is widely considered to be one of the world's most prestigious races, and is one of the races—along with the Monaco Grand Prix and Indianapolis 500—that form the Triple Crown of Motorsport, and is also one of the races alongside the 24 Hours of Daytona and 12 Hours of Sebring that make up the informal Triple Crown of endurance racing. Run since 1923, it is the oldest active endurance racing event in the world.