HMS Linaria was a Flower-class corvette of the Royal Navy, which saw service during the Second World War. Originally built for the US Navy as Clash (PG-91), formerly CN-309, she was launched on 18 November 1942, by Midland Shipyards, Ltd., Midland, Ontario, Canada. Upon completion Clash was transferred to the Royal Navy on 19 June 1943 and commissioned as HMS Linaria. On 27 July 1946 she was returned to the U.S. Navy. Never commissioned in the U.S. Navy, Clash was sold on 15 January 1948.