Lac Merni is a Lake located in Lac-Walker; Sept-Rivières, Quebec.

• Latitude: 50° 18' 1'' North   (decimal: 50.3002778)
• Longitude: 67° 21' 24'' West   (decimal: -67.3566667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Lac Merni
• GPS Coordinate Locator Map: Lac Merni Lat/Long