Harlequin Lake is a Lake located in Queen Charlotte Land District, British Columbia and has an elevation of 37 meters.

• Latitude: 54° 0' North   (decimal: 54.0000000)
• Longitude: 131° 50' West   (decimal: -131.8333000)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: British Columbia
• Elevation: 37 meters
• Location: Queen Charlotte Land District
• Atlas of Canada Locator Map: Harlequin Lake
• GPS Coordinate Locator Map: Harlequin Lake Lat/Long