Lac Anatwayasich is a Lake located in Baie-James; Jamésie, Quebec.

• Latitude: 54° 34' 43'' North   (decimal: 54.5786111)
• Longitude: 79° 23' 46'' West   (decimal: -79.3961111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Anatwayasich
• GPS Coordinate Locator Map: Lac Anatwayasich Lat/Long