Saint-Sauveur-Marville () is a commune in the Eure-et-Loir department in northern France. It was created in 1972 by the merger of two former communes: Marville-les-Bois and Saint-Sauveur-Levasville.
The Commune along with another 70 communes shares part of a 47,681 hectare, Natura 2000 conservation area, called the Forêts et étangs du Perche.