Mérens-les-Vals (French pronunciation: [meʁɛ̃s le vals]; Languedocien: Merens las Vals) is a commune in the Ariège department in southwestern France.

The village is at the confluence of three valleys: Ariège, Nabre and Morgoulliou.

The night train from Gare d'Austerlitz, Paris to Latour-de-Carol stops here.

There are six local trains a day to Toulouse, this journey takes 2 hours and 15 minutes.

This Ariège geographical article is a stub.