The MV Manx Viking / Nindawayma was a passenger, truck and car ferry, whose last active service was on Lake Huron, operated by the Owen Sound Transportation Company; under contract to the Ontario Ministry of Transportation. In Canadian service she served the Highway 6 route between Tobermory and South Baymouth, Manitoulin Island from 1989 to 1992 alongside the MS Chi-Cheemaun.

The Owen Sound Transportation Company, Limited was the forerunner of the enterprise that currently operates the vehicle and passenger ferry - M.S. Chi-Cheemaun - between Tobermory on the Bruce Peninsula, and South Baymouth on Manitoulin Island. For updated information, see the article on the M.S. Chi-Cheemaun.