Lac Helluard is a Lake located in Saint-Roch-de-Mékinac; Mékinac, Quebec.

• Latitude: 46° 49' 44'' North   (decimal: 46.8289184)
• Longitude: 72° 50' 25'' West   (decimal: -72.8403979)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Roch-de-Mékinac; Mékinac
• GPS Coordinate Locator Map: Lac Helluard Lat/Long