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

• Latitude: 55° 58' 17'' North   (decimal: 55.9713889)
• Longitude: 70° 36' 17'' West   (decimal: -70.6047222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Dieter
• GPS Coordinate Locator Map: Lac Dieter Lat/Long