Étang Greffeil is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 342 meters.

• Latitude: 48° 53' 45'' North   (decimal: 48.8958333)
• Longitude: 72° 59' 34'' West   (decimal: -72.9927778)
• Topography Feature Category: Lake
• Geographical Feature: Étang
• Canadian Province/Territory: Quebec
• Elevation: 342 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Étang Greffeil
• GPS Coordinate Locator Map: Étang Greffeil Lat/Long