HMS Flint Castle (K383) was a Castle-class corvette of Britain's Royal Navy. She was named after Flint Castle in North East Wales.Built by Henry Robb at Leith, she was laid down on 20 April 1943 and launched on 1 September 1943. Commissioned on 31 December 1944 she served with the Clyde Escort Force until November 1945. She was then transferred to the Second Training Squadron at Portland where she remained until March 1956.