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

• Latitude: 58° 54' 00'' North   (decimal: 58.8999150)
• Longitude: 70° 12' 44'' West   (decimal: -70.2123351)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Fanfan
• GPS Coordinate Locator Map: Lac Fanfan Lat/Long