Ajac is a commune in the Aude department, part of the Occitanie region, southern France. Ajac is 7 km from the local market town of Limoux, …Ajac is a commune in the Aude department, part of the Occitanie region, southern France. Ajac is 7 km from the local market town of Limoux, and 30 km from the historic city of Carcassonne. Falling within the ancient region of Languedoc, Ajac is part of the Pays Cathare, an area rich with Medieval abbeys and castles.