Lac Tanguay is a Lake located in Mont-Albert; La Haute-Gaspésie, Quebec.

• Latitude: 49° 2' 42'' North   (decimal: 49.0450453)
• Longitude: 66° 20' 20'' West   (decimal: -66.3388455)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Albert; La Haute-Gaspésie
• Atlas of Canada Locator Map: Lac Tanguay
• GPS Coordinate Locator Map: Lac Tanguay Lat/Long