Lac Éclair is a Lake located in Rivière-aux-Outardes; Manicouagan, Quebec.

• Latitude: 49° 52' 44'' North   (decimal: 49.8788889)
• Longitude: 69° 1' 11'' West   (decimal: -69.0197222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lac Éclair
• GPS Coordinate Locator Map: Lac Éclair Lat/Long