Lac Rouillard is a Lake located in Lac-aux-Sables; Mékinac, Quebec.

• Latitude: 46° 55' 11'' North   (decimal: 46.9196999)
• Longitude: 72° 25' 20'' West   (decimal: -72.4222000)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-aux-Sables; Mékinac
• GPS Coordinate Locator Map: Lac Rouillard Lat/Long