Lac à Tennis-Beaudoin is a Lake located in Saint-Guillaume-Nord; Matawinie, Quebec.

• Latitude: 46° 26' 55'' North   (decimal: 46.4486521)
• Longitude: 74° 4' 54'' West   (decimal: -74.0815447)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Guillaume-Nord; Matawinie
• GPS Coordinate Locator Map: Lac à Tennis-Beaudoin Lat/Long