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

• Latitude: 61° 23' 40'' North   (decimal: 61.3944294)
• Longitude: 72° 47' 33'' West   (decimal: -72.7924988)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Itirviluarjuk
• GPS Coordinate Locator Map: Lac Itirviluarjuk Lat/Long