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

• Latitude: 58° 9' 0'' North   (decimal: 58.15)
• Longitude: 66° 49' 37'' West   (decimal: -66.8269444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• GPS Coordinate Locator Map: Lac Tasivalliajuq Lat/Long