Le Chesnay is located in Paris city, France at the 48.8222, 2.1221 coordinates. Distance from Le Chesnay to other cities. are listed below, click on the city name to find distance between. Distance from Le Chesnay to Cergy-Pontoise 24 km, to Saint-Quentin-en-Yvelines 9 km, to Boulogne-Billancourt 9 km. The green marker indicates the location of Le Chesnay.