Lac Oswald is a Lake located in Saint-Zénon; Matawinie, Quebec.

• Latitude: 46° 30' 31'' North   (decimal: 46.5086478)
• Longitude: 73° 40' 46'' West   (decimal: -73.6793078)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Zénon; Matawinie
• GPS Coordinate Locator Map: Lac Oswald Lat/Long