Baie du Mestao is a Bay located in Rivière-aux-Outardes; Manicouagan, Quebec.

• Latitude: 50° 46' 14'' North   (decimal: 50.7706291)
• Longitude: 69° 19' 11'' West   (decimal: -69.3197834)
• Topography Feature Category: Bay
• Geographical Feature: Baie
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Baie du Mestao
• GPS Coordinate Locator Map: Baie du Mestao Lat/Long