Lac Castiglioni is a Lake located in Nouveau-Québec (territoire); Nord-du-Québec, Quebec.

• Latitude: 54° 27' 40'' North   (decimal: 54.4611111)
• Longitude: 64° 3' 20'' West   (decimal: -64.0555556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Nouveau-Québec (territoire); Nord-du-Québec
• Atlas of Canada Locator Map: Lac Castiglioni
• GPS Coordinate Locator Map: Lac Castiglioni Lat/Long