The 1985 24 Hours of Le Mans was the 53rd Grand Prix of Endurance as well as the fourth round of the 1985 World Endurance Championship. It took place at the Circuit de la Sarthe, France, on 15 and 16 June 1985.
During Thursday's practice, Briton driver Dudley Wood in a John Fitzpatrick entered Porsche 962C tangled with the Swiss driver Jean-Pierre Frey in an Alba AR2 on the Mulsanne Straight at 200 mph (320 km/h). They crashed, and they both went over the barriers and into the trees, similar to John Sheldon's crash the year before. The impact was so hard, it even cracked the Porsche's engine. No one was killed. As a result, neither car started the race.
During qualifying, German driver Hans-Joachim Stuck recorded the fastest ever lap of Le Mans- at an average speed of 156.471 mph (251.815 km/h).
Klaus Ludwig took his third overall win, and his second in a row, in the same 956B chassis, 956B-117, which had won the 1984 race.
6-time winner Jacky Ickx finished his final 24 Hours of Le Mans in 10th place.