Lac Thier is a Lake located in Baie-James; Jamésie, Quebec.

• Latitude: 53° 43' 17'' North   (decimal: 53.7213889)
• Longitude: 72° 17' 12'' West   (decimal: -72.2866667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Thier
• GPS Coordinate Locator Map: Lac Thier Lat/Long