Lac Witson is a Lake located in Alleyn-et-Cawood; Pontiac, Quebec.

• Latitude: 45° 56' 21'' North   (decimal: 45.9391667)
• Longitude: 76° 10' 12'' West   (decimal: -76.17)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Alleyn-et-Cawood; Pontiac
• GPS Coordinate Locator Map: Lac Witson Lat/Long