Saint-Sauveur-de-Montagut (French pronunciation: [sɛ̃ sovœʁ də mɔ̃taɡy]; Vivaro-Alpine: Sant Sauvador de Montagut) is a commune of the Ardèche department in southern France.

Ruins of an early-medieval castle (which was used as a watch tower/outpost) on one of the hills are the main historical remnant of what is one of France's most sparsely populated areas.

However, a medium-sized plant nursery now exists, along with a nursing home, a mineral water producer, a comprehensive school and an ice-cream factory.

In the summer months many tourists, mainly from the Netherlands, flock to the town where attractions such as la Plage (an artificial beach), a canoe-kayak centre and various paths for hiking/walking make the town a very good tourist spot.

Saint-Sauveur-de-Montagut, Evolution D'Une Petite Commune Rurale en Ardèche, Elie Reynier 1996 (Editions Empire & Royaume: Valence)