SS Emperor was a steel-hulled Canadian lake freighter in service between 1911 and 1947. She was built between 1910 and April 1911 by the Collingwood Shipbuilding Company in Collingwood, Ontario, for Inland Lines, Ltd. of Midland, Ontario. She entered service on May 3, 1911. Emperor was sold to Canada Steamship Lines of Montreal, Quebec. Under the ownership of Canada Steamship Lines, she carried a wide variety of cargoes, but most frequently iron ore to Point Edward, Ontario, where it would be transported to Hamilton, Ontario, by train. After the opening of the fourth Welland Canal, Emperor carried the ore directly to Hamilton. She was involved in several accidents throughout her career.