Racing Club de Lens, commonly referred to as RC Lens or simply Lens, is a French professional football club based in the northern city of Lens in the department of Pas-de-Calais. The club's nickname, Les Sang et Or, comes from its traditional colours of red and gold. As of the 2023–24 season, Lens competes in Ligue 1, the highest tier of French football.

Lens is a city in the Pas-de-Calais department in northern France. It is one of the main towns of Hauts-de-France along with Lille, Valenciennes, Amiens, Roubaix, Tourcoing, Arras and Douai. The inhabitants are called Lensois.