Belpech (French pronunciation: [bɛlpɛʃ] ⓘ; Occitan: Bèlpuèg) is a commune in the Aude department in southern France.

Belpech is a town of 1300 inhabitants built at 245 meters above sea level; old medieval Bastide located at the foot of a sunny slope of Lauragais, just upstream from the confluence of the Vixiège (which runs through the village) and the Hers, which is a tributary.

The name of the village at this time (Bellopodio-Beaupuy) derives from that of a Gaulish god: Belenos and "pech" means the hill which dominates.

It was dominated by a castle called Castelas, built in the eleventh century on the hill "pech" overlooking the present village, which you can still see the remains of the keep.

The Monastery of Our Lady of Garnac (Garnicia), founded in the fourteenth century was located south of the castle, a few remnants of these walls and the church are still visible.