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

[3][4][5] 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.

[6] 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.

In October 1943, she was sent to New York for a major refit that lasted until December of that year, during which her fo'c'sle was extended.

[12] After completing her working up after her first refit, Collingwood was assigned to the "Newfie" – Derry run, which were the Atlantic convoys that no longer switched escort groups near Iceland, but went all the way to the United Kingdom.

From April 1945 until June 1945, Collingwood served as a training ship at Digby, Nova Scotia.