US Boulogne

Boulogne
Full nameUnion Sportive de Boulogne-sur-Mer Côte d'Opale
Founded1898 (1898)
GroundStade de la Libération,
Boulogne-sur-Mer
Capacity9,534
PresidentVincent Boutillier
ManagerFabien Dagneaux and Antony Lecointe
LeagueChampionnat National
2024–25Championnat National, 3rd of 18
Websiteusbco.com

Union Sportive de Boulogne-sur-Mer Côte d'Opale (commonly referred to as US Boulogne, USBCO or frequently, simply Boulogne) is a French association football club based in the commune of Boulogne-sur-Mer. The club was founded in 1898 and currently plays in Championnat National, the third level of French football, having been promoted from the Championnat National 2 at the end of 2023–24 season.

The club was formed in 1898 and its achievements are comparatively minor, with their biggest feat to date consisting of reaching the semi-finals during the 1936–37 edition of the Coupe de France, and one Ligue 1 season in 2009–10. Boulogne play their home matches at the Stade de la Libération, which seats 15,004, having previously seated only 7,000 prior to its renovation in 2007.