Lac William is a Lake located in Shawinigan; Shawinigan, Quebec.

• Latitude: 46° 50' 43'' North   (decimal: 46.8453085)
• Longitude: 72° 57' 42'' West   (decimal: -72.9617895)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Shawinigan; Shawinigan
• GPS Coordinate Locator Map: Lac William Lat/Long