The 83rd 24 Hours of Le Mans (French: 83e 24 Heures du Mans) was an automobile endurance event for Le Mans Prototype and Le Mans Grand Touring Endurance cars held from 10 to 14 June 2015 at the Circuit de la Sarthe, Le Mans, France. It was the 83rd running of the 24 Hour race organised by the Automobile Club de l'Ouest as well as the third round of the 2015 FIA World Endurance Championship. A test day was held two weeks prior to the race on 31 May. A record-breaking 263,500 people attended the event.