Lac Antoinette is a Lake located in Saint-Mathieu-du-Parc; Maskinongé, Quebec and has an elevation of 338 meters.

• Latitude: 46° 42' 40'' North   (decimal: 46.7111110)
• Longitude: 72° 57' 48'' West   (decimal: -72.9633333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 338 meters
• Location: Saint-Mathieu-du-Parc; Maskinongé
• Atlas of Canada Locator Map: Lac Antoinette
• GPS Coordinate Locator Map: Lac Antoinette Lat/Long