Rock Bay is a Bay located in Thunder Bay, Ontario.

• Latitude: 48° 52' 32'' North   (decimal: 48.8755555)
• Longitude: 90° 39' 42'' West   (decimal: -90.6616666)
• Topography Feature Category: Bay
• Geographical Feature: Bay
• Canadian Province/Territory: Ontario
• Location: Thunder Bay
• Atlas of Canada Locator Map: Rock Bay
• GPS Coordinate Locator Map: Rock Bay Lat/Long