Île au Rat is a Island located in Notre-Dame-du-Portage; Rivière-du-Loup, Quebec.

• Latitude: 47° 47' 45'' North   (decimal: 47.7958552)
• Longitude: 69° 36' 2'' West   (decimal: -69.6006038)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Location: Notre-Dame-du-Portage; Rivière-du-Loup
• Atlas of Canada Locator Map: Île au Rat
• GPS Coordinate Locator Map: Île au Rat Lat/Long