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

• Latitude: 59° 51' 42'' North   (decimal: 59.8616189)
• Longitude: 71° 32' 59'' West   (decimal: -71.5495961)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Sijjait
• GPS Coordinate Locator Map: Lac Sijjait Lat/Long