Villa Mercedes is a city in the province of San Luis, Argentina. It has 96,781 inhabitants as per the 2001 census . It lies on the center-east of the province, on the left-hand banks of the Quinto River, 32 km from the border with Córdoba, on National Route 148, and near the intersection of National Routes 8 and 7. National Route 7 links the city to the provincial capital San Luis, 90 km to the north-west.