Lac Lalanne is a Lake located in Baie-James; Jamésie, Quebec.

• Latitude: 49° 43' 47'' North   (decimal: 49.7297222)
• Longitude: 77° 45' 54'' West   (decimal: -77.765)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• GPS Coordinate Locator Map: Lac Lalanne Lat/Long