The Place de l'Opéra is a square in the 9th arrondissement of Paris, at the junction of boulevard des Italiens, boulevard des Capucines, avenue de l'Opéra, rue Auber, rue Halévy, rue de la Paix and rue du Quatre-Septembre. It was built at the same time as the Opéra Garnier (designed by Charles Garnier), which is sited on it and after which it is named. Both structures were part of the Haussmannian redesign of Paris under Napoleon III of France.