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

• Latitude: 58° 18' 43'' North   (decimal: 58.3118447)
• Longitude: 69° 43' 46'' West   (decimal: -69.7293200)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Thierry
• GPS Coordinate Locator Map: Lac Thierry Lat/Long