Lac Biltup is a Bay located in Baie-James; Jamésie, Quebec.

• Latitude: 53° 40' 1'' North   (decimal: 53.6669444)
• Longitude: 75° 54' 19'' West   (decimal: -75.9052778)
• Topography Feature Category: Bay
• Geographical Feature: Baie
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• GPS Coordinate Locator Map: Lac Biltup Lat/Long