Jamie Theriot (born January 30, 1979 in Arnaudville, Louisiana) is an American jockey. The son of Thoroughbred horse trainer Harold Theriot, he is a nephew of jockey Larry Melancon.
Jamie Theriot, who began riding on bush tracks in his native Louisiana, turned professional at age sixteen. He has competed primarily on the Louisiana-Arkansas-Kentucky racing circuit, where he won a riding title at Evangeline Downs in 2001 and the 2003 riding title at Oaklawn Park Race Track.
In 2007, Theriot won his first Grade 1 race, capturing the Shadwell Turf Mile Stakes aboard Purim at Keeneland Rqace Course. On May 17, 2008, Theriot rode in his first American Classic, taking sixth place aboard Kentucky Bear in the Preakness Stakes at Pimlico Race Course. On June 18, 2008, he became the seventh rider in Churchill Downs history to ride six winners in a single day