Lac Thaddé is a Lake located in Saint-François-de-Sales; Le Domaine-du-Roy, Quebec.

• Latitude: 48° 15' 53'' North   (decimal: 48.2647222)
• Longitude: 72° 19' 26'' West   (decimal: -72.3238889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-François-de-Sales; Le Domaine-du-Roy
• GPS Coordinate Locator Map: Lac Thaddé Lat/Long