Lac Westmeath is a Lake located in L'Isle-aux-Allumettes; Pontiac, Quebec and has an elevation of 121 meters.

• Latitude: 45° 49' 11'' North   (decimal: 45.8197222)
• Longitude: 76° 54' 47'' West   (decimal: -76.9130556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 121 meters
• Location: L'Isle-aux-Allumettes; Pontiac
• Atlas of Canada Locator Map: Lac Westmeath
• GPS Coordinate Locator Map: Lac Westmeath Lat/Long