Gillis Island is a Island located in Restigouche, New Brunswick and has an elevation of 2 meters.

• Latitude: 47° 59' 41'' North   (decimal: 47.9947906)
• Longitude: 66° 46' 4'' West   (decimal: -66.7679138)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: New Brunswick
• Elevation: 2 meters
• Location: Restigouche
• Atlas of Canada Locator Map: Gillis Island
• GPS Coordinate Locator Map: Gillis Island Lat/Long