HMS Audacity was a British escort carrier of the Second World War and the first of her kind to serve in the Royal Navy. She was originally the German merchant ship Hannover, which the British captured in the West Indies in March 1940 and renamed Sinbad, then Empire Audacity. She was converted and commissioned as HMS Empire Audacity, then as HMS Audacity. She was torpedoed and sunk by a German U-boat in late 1941.