Mouse Island is a Island located in Terra Nova, Newfoundland and Labrador.

• Latitude: 48° 31' 8'' North   (decimal: 48.5188888)
• Longitude: 53° 37' 3'' West   (decimal: -53.6175000)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Newfoundland and Labrador
• Location: Terra Nova
• Atlas of Canada Locator Map: Mouse Island
• GPS Coordinate Locator Map: Mouse Island Lat/Long