Mirepoix (French pronunciation: [miʁpwa] ⓘ; Occitan: Mirapeis, supposedly from mira peis, meaning see the fish) is a commune in the Ariège department in southwestern France.

The town, originally on the right bank of the Hers-Vif, was destroyed by a violent flood in 1289.

It was rebuilt by Jean de Lévis in 1290, on an elevated natural terrace on the other side of the river.

At the heart of Mirepoix is one of the finest surviving arcaded market squares - Les Couverts- in France.

The cathedral of St-Maurice has the second widest Gothic arch in Europe (after Girona in Catalonia, Spain).

MiMa is an international festival of the art of marionettes held every summer.