The 2011–12 Atlas season was the 65th professional season of Mexico's top-flight football league. The season is split into two tournaments—the Torneo Apertura and the Torneo Clausura—each with identical formats and each contested by the same eighteen teams. Puebla began their season on July 23, 2011 against Puebla, Atlas play their homes games on Saturdays at 8:45pm local time.