Lac à Beaudoin is a Lake located in Lac-Nilgaut; Pontiac, Quebec.

• Latitude: 46° 52' 10'' North   (decimal: 46.8694444)
• Longitude: 77° 5' 36'' West   (decimal: -77.0933333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Lac à Beaudoin
• GPS Coordinate Locator Map: Lac à Beaudoin Lat/Long