Audressein (French pronunciation: [odʁɛsɛ̃]; Occitan: Audressenh) is a commune in the Ariège department in the Occitanie region of south-western France.

The D804 goes from Sor in the west through the commune just south of the village and continues to Castillon-en-Couserans in the south-east.

The Bouigane river flows from the west across the commune to join the Lez at the village.

The Long Rieu stream rises in the north of the commune and flows south to join the Bouigane near the village.

[3] [3] List of Successive Mayors[4] The inhabitants of the commune are known as Audressenois or Audressenoises in French.