HMS Byard was a of the Royal Navy during World War II. She was named for Sir Thomas Byard, who commanded at the Battle of Camperdown in 1797 during the French Revolutionary Wars.
Originally destined for the US Navy as a turbo-electric (TE) type destroyer escort, HMS Byard was provisionally given the name USS Donaldson (this name was reassigned to DE 44). However the ship was diverted to the Royal Navy before her launch.
HMS Byard served exclusively with the 4th Escort Group earning battle honours for service in the North Atlantic.
In 1943, HMS Byards ship's company paraded in Boston, MA, in the American Day parade.
On 17 October 1943, HMS Byard was escorting Atlantic convoy ONS 20 which was attacked by a wolf pack of 16 U-boats east of Cape Farewell, Greenland. During the ensuing battle HMS Byard sank the submarine at position 59.95°N -37°W, by the use of depth charges resulting in 27 dead and 27 survivors from U-841s crew. This action made HMS Byard the first Captain-class frigate to destroy a Kriegsmarine submarine.