Lac Gignac is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 370 meters.

• Latitude: 49° 57' 44'' North   (decimal: 49.9622222)
• Longitude: 74° 32' 16'' West   (decimal: -74.5377778)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 370 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Gignac
• GPS Coordinate Locator Map: Lac Gignac Lat/Long