Lac O'Sullivan is a Lake located in Lac-Lenôtre; La Vallée-de-la-Gatineau, Quebec and has an elevation of 418 meters.

• Latitude: 47° 33' 42'' North   (decimal: 47.5616667)
• Longitude: 75° 59' 31'' West   (decimal: -75.9919444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 418 meters
• Location: Lac-Lenôtre; La Vallée-de-la-Gatineau
• Atlas of Canada Locator Map: Lac O'Sullivan
• GPS Coordinate Locator Map: Lac O'Sullivan Lat/Long