Lac Guindeau is a Lake located in Rivière-Koksoak; Kativik, Quebec.

• Latitude: 61° 35' 18'' North   (decimal: 61.5883443)
• Longitude: 73° 37' 42'' West   (decimal: -73.6283085)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Guindeau
• GPS Coordinate Locator Map: Lac Guindeau Lat/Long