Union Sportive de Biskra, also known as US Biskra or simply USB for short, is a Biskra-based Algerian football club. The club was established in 1934, and its colors are green and black. Complexe Sportif d'El Alia, their home stadium, has a capacity of 35,000 spectators. The club currently competes in Algeria's Ligue Professionnelle 1.