Football Club Lorient-Bretagne Sud is a French association football club based in Lorient, Brittany. The club was founded in 1926 and will play in Ligue 1 in the 2020–21 season after promotion from Ligue 2 in the 2019–20 season. Lorient plays its home matches at the Stade Yves Allainmat, named after the former mayor of Lorient.
The stadium is surnamed Stade du Moustoir with a capacity of 18,890.
The team is managed by Christophe Pélissier.
Lorient spent the majority of its life as an amateur club. Lorient's achieved its biggest honor in 2002 when the club won the Coupe de France defeating Bastia 1–0 in the final. Lorient has never won Ligue 1 but has won the Championnat National earning this honor in 1995. Regionally, the club has won five Brittany Division d'Honneur titles and six Coupe de Bretagne.