Port Nelson was a dredger that served from 1914 to 1924 at Port Nelson, Manitoba Canada.

In 1913 Canada's Department of Railways and Canals commissioned the Polson Ironworks, in Toronto, Ontario to build a large suction dredger to help construct what was to be the first port on North America's Arctic Ocean coast—to be named the Port Nelson.

[1] She was completed in March, 1914, and towed to Hudson's Bay, arriving in September 1914, where she promptly ran aground.

[2] A 1924 storm tossed her onto the artificial island she helped create, where her wreck remains today.

[3] She carried a crew of 35, and was 180 feet (55 m) long, had beam of 43 feet (13 m), a draft of 6 feet (1.8 m), and displaced 1200 tonnes.