Opistokwayau River is a River located in Kenora, Ontario.

• Latitude: 52° 21' 35'' North   (decimal: 52.3597222)
• Longitude: 81° 33' 21'' West   (decimal: -81.5558333)
• Topography Feature Category: River
• Geographical Feature: River
• Canadian Province/Territory: Ontario
• Location: Kenora
• Atlas of Canada Locator Map: Opistokwayau River
• GPS Coordinate Locator Map: Opistokwayau River Lat/Long