J. Keith Desormeaux (born c. 1967) is a horse trainer in American Thoroughbred horse racing. He is the brother of jockey Kent Desormeaux and trainer of 2016 Preakness Stakes winner Exaggerator. Desormeaux was born in Maurice, Louisiana, part of Louisiana's Cajun region. His brother, Horse Racing Hall of Fame jockey Kent Desormeaux Keith was named John Keith in honor of one of his mother's siblings. Harris Desormeaux owned , a "bush track".