Lac Yourin is a Lake located in Rivière-Koksoak; Kativik, Quebec.

• Latitude: 58° 47' 9'' North   (decimal: 58.7857850)
• Longitude: 73° 3' 5'' West   (decimal: -73.0513952)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Yourin
• GPS Coordinate Locator Map: Lac Yourin Lat/Long