Aubenas is a commune in the southern part of the Ardèche department in Southern France. It is the seat of several government offices. The mountainous and rugged countryside is popular for vacation homes. The river Ardèche flows through the commune. Aubenas is one of the most populous communes in the Ardèche department with 12,479 inhabitants as of 2019, after Annonay and before Guilherand-Granges and Tournon-sur-Rhône.