Grandmother Island is a Island located in Strait of Belle Isle, Newfoundland and Labrador and has an elevation of 14 meters.

• Latitude: 51° 35' 58'' North   (decimal: 51.5994444)
• Longitude: 55° 26' 57'' West   (decimal: -55.4491666)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Newfoundland and Labrador
• Elevation: 14 meters
• Location: Strait of Belle Isle
• Atlas of Canada Locator Map: Grandmother Island
• GPS Coordinate Locator Map: Grandmother Island Lat/Long