Lac Paul-Horace-Dumais is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec.

• Latitude: 49° 46' 40'' North   (decimal: 49.7778394)
• Longitude: 72° 7' 53'' West   (decimal: -72.1314699)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac Paul-Horace-Dumais
• GPS Coordinate Locator Map: Lac Paul-Horace-Dumais Lat/Long