HMS Findhorn (K301) was a of the Royal Navy (RN). Findhorn was built in Canada for the United States Navy, however, she was loaned to the Royal Navy as part of the Lend-Lease program. She served during World War II.
Findhorn was one of 151 River-class frigates launched between 1941 and 1944 for use as anti-submarine convoy escorts, named after rivers in the United Kingdom. The ships were designed by naval engineer William Reed, of Smith's Dock Company of South Bank-on-Tees, to have the endurance and anti-submarine capabilities of the sloops, while being quick and cheap to build in civil dockyards using the machinery (e.g. reciprocating steam engines instead of turbines) and construction techniques pioneered in the building of the s. Its purpose was to improve on the convoy escort classes in service with the Royal Navy at the time, including the Flower class.
In October 1943 Findhorn escorted the battleship on her journey from Norfolk, Virginia, to Argentina, and finally to Greenock, Scotland.
On 12 August 1944, Findhorn and were sent to hunt down the after she had been sighted by aircraft from the escort carrier . Godavari made radar contact first and directed the two ships to close in. Eventually after firing many Hedgehog depth charges explosions were heard aboard Findhorn, and U-198s sinking was confirmed the next day by a large oil slick. This was the only U-boat sunk in the Indian Ocean by a hunter-killer group of the entire war.
For the remainder of the Second World War Findhorn mainly severed in convoy escort duties until she was returned to US service in March 1946.