Union Sportive Créteil-Lusitanos is a French football club based in Créteil, a southeastern suburb of Paris. The club was founded in 1936 and currently play in the Championnat National 2, the fourth level of French football. The football club forms part of an omnisports club that is also known for its handball team.

Créteil is a commune in the southeastern suburbs of Paris, Île-de-France. It is located 11.7 km (7.3 mi) from the centre of Paris. Créteil is the préfecture (capital) of the Val-de-Marne department as well as the seat of the Arrondissement of Créteil. The city is, moreover, the seat of a Roman Catholic diocese and of one of France's 30 nationwide académies (districts) of the Ministry of National Education.