Boulogne-Billancourt is a commune in the western inner suburbs of Paris, France, located 8.2 km (5 mi) from the centre of Paris at Notre Dame. It is a subprefecture of the Hauts-de-Seine department and thus the seat of the larger arrondissement of Boulogne-Billancourt. It is also part of the Métropole du Grand Paris. Boulogne-Billancourt includes one island in the Seine: Île Seguin.
- Country
- France
- Website
- http://www.boulognebillancourt.com