Lac Ritchie is a Lake located in Rivière-aux-Outardes; Manicouagan, Quebec.

• Latitude: 49° 42' 16'' North   (decimal: 49.7044932)
• Longitude: 67° 52' 51'' West   (decimal: -67.8808418)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lac Ritchie
• GPS Coordinate Locator Map: Lac Ritchie Lat/Long