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

• Latitude: 58° 21' 31'' North   (decimal: 58.3585176)
• Longitude: 69° 52' 56'' West   (decimal: -69.8820981)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Soucy
• GPS Coordinate Locator Map: Lac Soucy Lat/Long