HMS Heartsease was a Flower-class corvette of the Royal Navy. She served with both the Royal Navy and the United States Navy during the Second World War, with the latter navy as USS Courage. She then spent several years under a succession of names in civilian service. In 1957 she was chartered on behalf of Indonesian rebels to smuggle rubber, copra and matériel. The Indonesian Air Force intercepted and sank her off the coast of Minahasa in North Sulawesi in December 1958.