Lac Doy is a Lake located in Lac-Jacques-Cartier; La Côte-de-Beaupré, Quebec and has an elevation of 730 meters.

• Latitude: 47° 29' 22'' North   (decimal: 47.4894444)
• Longitude: 71° 28' 17'' West   (decimal: -71.4713889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 730 meters
• Location: Lac-Jacques-Cartier; La Côte-de-Beaupré
• Atlas of Canada Locator Map: Lac Doy
• GPS Coordinate Locator Map: Lac Doy Lat/Long