Praz-sur-Arly (French pronunciation: [pʁa syʁ aʁli], literally Praz on Arly; Arpitan: Le Prâ) is a commune in the Haute-Savoie department in the Auvergne-Rhône-Alpes region in south-eastern France.

It is part of the urban area of Sallanches.

The village is twinned with the town of Roscoff, in Brittany.

The village of Praz-sur-Arly is 1,035 metres above sea level, in Val d'Arly, between Megève and Flumet.

This Haute-Savoie geographical article is a stub.