🇫🇷 Saint-Denis is the préfecture of the French overseas department and region of Réunion, in the Indian Ocean. It is located at the island's northernmost point, close to the mouth of the Rivière Saint-Denis.
Saint Denis is the most populous commune in the French overseas departments and the twentieth most populous in all of France. The metropolitan area of Saint Denis includes Saint-Denis and the remainder in the neighbouring communes of La Possession, Sainte-Marie, Sainte-Suzanne, Saint-André, and Bras-Panon.
Saint-Denis has a population of over 150,535 people. Saint-Denis also forms the centre of the wider Saint-Denis metropolitan area which has a population of over 309,635 people.