Guilliams Island is a Island located in Rupert Land District, British Columbia and has an elevation of 1 meters.

• Latitude: 50° 11' North   (decimal: 50.1832999)
• Longitude: 127° 51' West   (decimal: -127.8500000)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: British Columbia
• Elevation: 1 meters
• Location: Rupert Land District
• Atlas of Canada Locator Map: Guilliams Island
• GPS Coordinate Locator Map: Guilliams Island Lat/Long