HMCS Fergus was a modified Flower-class corvette that served with the Royal Canadian Navy during the Second World War.

[4][5][6] The "corvette" designation was created by the French as a class of small warships; the Royal Navy borrowed the term for a period but discontinued its use in 1877.

[7] During the hurried preparations for war in the late 1930s, Winston Churchill reactivated the corvette class, needing a name for smaller ships used in an escort capacity, in this case based on a whaling ship design.

The platform for the 4-inch main gun was raised to minimize the amount of spray over it and to provide a better field of fire.

It was also connected to the wheelhouse by a wide platform that was now the base for the Hedgehog anti-submarine mortar that this version was armed with.

[3] Fergus was paid off at Sydney, Nova Scotia 14 July 1945 and was placed in reserve at Sorel, Quebec.

[12][13] On 22 November 1949, while carrying a load of coal from Sydney, Nova Scotia to Bay Roberts, Newfoundland, Harcourt Kent wrecked 2.5 nautical miles (4.6 km; 2.9 mi) west of St. Shott's, Newfoundland and Labrador.