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

[2][3][4] 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.

[5] 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.

[10] Charlottetown was torpedoed and sunk on 11 September 1942 by the U-517 6 nautical miles (11 km) off Cap Chat in the St. Lawrence River along the northern shore of the Gaspé Peninsula.

She had been returning to base with the minesweeper HMCS Clayoquot after escorting convoy SQ-35 and was not zigzagging.