The 24 Heures Motos (often called in English the 24 Hours of Le Mans motorcycle race) is a motorcycle endurance race held annually since 1978 on the Bugatti Circuit, Le Mans, Sarthe, France.

The race is organized by the Automobile Club de l'Ouest (ACO) and is part of the Endurance FIM World Championship.

At the end of 2001, the three 24 Hour classic races (Le Mans, Liège and the Bol d'Or) withdrew from the Endurance World Championship to create the Master of Endurance.

Le Mans returned to the Endurance FIM World Championship in 2006.

NOTE: The traditional Le Mans start, abolished in 1970 for automobiles, is still used for motorcycles.