Gates Phillips Thruston (June 11, 1835 – December 9, 1912) was an American lawyer and businessman. Born in Ohio, he served in the Union Army during the American Civil War and started a legal practise in Nashville, Tennessee in the postbellum era. He served as the president of the State Insurance Company. He also was an amateur archeologist, and the author of several books about Native American mounds and artifacts. His collection is held at the Tennessee State Museum and Vanderbilt University.