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.