François-Aymar de Monteil was a French Navy officer. He served in the War of American Independence, earning membership in the Society of the Cincinnati. He was also a member and director of the Académie de Marine. Monteil joined the Navy as a Garde-Marine in 1741. He took part in the Battle of Cape Sicié on 22 February 1744, and was promoted to Ensign in 1746. He took part in the Siege of Pensacola in May 1781. He then returned at Cap-Français, arriving on 10 July. On 17 July 1781, transferred to command of the Blue squadron (rear) in De Grasse's fleet, with his flag on the 80-gun Languedoc. Before his squadron departed, an accidental fire destroyed the 74-gun Intrépide, which exploded. Monteil took part in the Battle of the Chesapeake on 5 September 1781. On 25 November 1782, he became an Ordinary member of the Académie de Marine. Monteil was promoted to Lieutenant général des armées navales on 8 February 1783.