Welcome to Saint-Ouen, a vibrant city located in the Seine-Saint-Denis department, in the Île-de-France region. Known for its rich cultural and historical heritage, Saint-Ouen is a true gem waiting to be discovered. The famous Marché aux Puces de Saint-Ouen, the largest antique market in the world, attracts visitors from around the globe. Stroll through its picturesque alleys and uncover rare and ...See more