Audax Club Parisien is a cycling club founded in Paris in 1904. It organises long-distance challenge rides in France and administers a branch of cycling known as randonneuring around the world. A randonnée in cycling is a challenge to ride distances up to more than 1,000 km between a minimum and maximum speed. The most prestigious event is Paris–Brest–Paris, which the Audax Club Parisien organises every four years.