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

• Latitude: 55° 2' 5'' North   (decimal: 55.0347222)
• Longitude: 73° 35' 23'' West   (decimal: -73.5897222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Uniam Achiiyut
• GPS Coordinate Locator Map: Lac Uniam Achiiyut Lat/Long