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

• Latitude: 49° 2' 33'' North   (decimal: 49.0425321)
• Longitude: 69° 29' 14'' West   (decimal: -69.4872795)
• 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 Watt
• GPS Coordinate Locator Map: Lac Watt Lat/Long