Maurienne (French pronunciation: [mɔʁjɛn]; Arpitan: Môrièna; Italian: Moriana) is one of the provinces of Savoy, corresponding to the arrondissement of Saint-Jean-de-Maurienne in France. It is also the original name of the capital of the province, now Saint-Jean-de-Maurienne.

The Maurienne valley is one of the great transverse valleys of the Alps . The river which has shaped the valley since the last glaciation is the Arc. The valley begins at the village of Écot (in the commune of Bonneval-sur-Arc ), at the foot of the Col de l'Iseran , and ends at the confluence of the Arc and the Isère in the commune of Aiton. The mountains on the southern side are the Dauphiné Alps and the Cottian Alps.