Louis Marshall (Fauquier County, Virginia, 7 October 1773 – Buckpond, Kentucky, April 1866) was an American educator.
He was educated at home, studied medicine in Edinburgh, and spent several years in Paris, participating in the attack upon the Bastille.
He was arrested during the Reign of Terror and condemned to death, but was rescued by the intervention of his elder brothers.
He attained note as a physician, but his taste for literature and languages caused him to abandon his profession, and he then established an academy in Woodford County, Kentucky.
He died in Woodford County, Kentucky, in 1866, one year after the end of the American Civil War.