Francis Reynolds-Moreton, 3rd Baron Ducie (28 March 1739 – 19 August 1808) was a British politician and naval officer. He served in the Royal Navy, being commissioned lieutenant with a date of seniority of 12 April 1762. By the outbreak of the American War of Independence he had been promoted Captain and was stationed in the West Indies in command of HMS Monarch. He commanded Monarch during the Battle of the Chesapeake in September 1781 and remained with her throughout 1782 and saw action during the Capture of Sint Eustatius, the Battle of Saint Kitts, the Battle of the Saintes and, the Battle of the Mona Passage.