Thomas Overton Brooks (December 21, 1897 – September 16, 1961) was a Democratic U.S. representative from the Shreveport-based Fourth Congressional District of northwestern Louisiana, having served for a quarter century beginning on January 3, 1937. Of a prominent family, Brooks was a nephew of U.S. Senator John Holmes Overton and a great-grandson of Walter Hampden Overton. At the time of his death, he was chairman of the House Science and Astronautics Committee.