The Longchamp Racecourse is a 57 hectare horse-racing facility located on the Route des Tribunes in the Bois de Boulogne at Paris, France. Built on the banks of the Seine River, it is used for flat racing and is noted for its variety of interlaced tracks and a famous hill that provides a real challenge to competing thoroughbreds. It has several racetracks varying from 1,000 to 4,000 metres in length with 46 different starting posts. The course is home to more than half of the group one races held in France. The highlight of the calendar is the Prix de l'Arc de Triomphe. Held on the first weekend in October, the prestigious event attracts the best horses from around the world.

Die Pferderennbahn Longchamp ist die wichtigste Pferderennsportanlage in Paris. Sie befindet sich im 16. Arrondissement im Bois de Boulogne.

L'hippodrome de Longchamp est un champ de courses hippiques construit en 1857 par l'architecte Antoine-Nicolas Bailly sur le domaine de l'abbaye de Longchamp (détruite à la Révolution française). Son nom vient du latin longus campus.