Lac Tremblay is a Lake located in Baie-d'Hudson; Kativik, Quebec.

• Latitude: 55° 1' 54'' North   (decimal: 55.0316667)
• Longitude: 76° 54' 53'' West   (decimal: -76.9147222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-d'Hudson; Kativik
• Atlas of Canada Locator Map: Lac Tremblay
• GPS Coordinate Locator Map: Lac Tremblay Lat/Long