Lac du Quai is a Lake located in Lac-Pythonga; La Vallée-de-la-Gatineau, Quebec.

• Latitude: 46° 39' 42'' North   (decimal: 46.6616667)
• Longitude: 76° 26' 26'' West   (decimal: -76.4405556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Pythonga; La Vallée-de-la-Gatineau
• Atlas of Canada Locator Map: Lac du Quai
• GPS Coordinate Locator Map: Lac du Quai Lat/Long