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

• Latitude: 50° 2' 43'' North   (decimal: 50.0452999)
• Longitude: 78° 4' 33'' West   (decimal: -78.0758000)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• GPS Coordinate Locator Map: Lac Joyce Lat/Long