The Concarneau Sports Union, also known as US Concarneau or USC, is a French football club founded on March 11, 1911 and based in the city of Concarneau.
The current club president Jacques Piriou has been leading the club since 2016.
- National Champion d’Automne in 2016
- Promoted to the CFA in 2016
- Round of 16 finalist for the Coupe de France in 2016
- Quarter finalist for the Coupe de France in 2015
- Round of 16 finalists for the Coupe de France in 2014