Lac Ludger is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec.

• Latitude: 48° 45' 52'' North   (decimal: 48.7644751)
• Longitude: 70° 0' 10'' West   (decimal: -70.0028394)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Lac Ludger
• GPS Coordinate Locator Map: Lac Ludger Lat/Long