HMCS Fennel was a Flower-class corvette that served primarily 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.

She was finished enough to make an ocean crossing as part of HX 113 and was completed at Greenock, United Kingdom.

She could be told apart from other Canadian Flowers by her lack of minesweeping gear and the siting of the after gun tub amidships.

Fennel's final refit took place in August 1944 at Pictou, Nova Scotia and took two months to complete.

[10] After completing at Greenock, Fennel was sent to Tobermory, the site of the ocean escort training facilities, to work up.

On 6 March 1944, after unsuccessful attempts at towing the boat to port U-744 was sunk in the North Atlantic, in position 52°01′N, 22°37′W, after being torpedoed by the British destroyer HMS Icarus.

[9] Not all these ships fought at the same time, as Gatineau and Kenilworth Castle both had to leave with mechanical defects during the battle.