Mastin Gentry White (January 1, 1901 – July 25, 1987) was a judge of the United States Court of Federal Claims from 1982 to 1987. Born in Van Zandt County, Texas, White received a Bachelor of Laws from the University of Texas School of Law in 1927, an Bachelor of Arts from New Mexico State Teachers College (now Western New Mexico University) in 1929, a Master of Laws from Columbia Law School in 1930, and a Doctor of Juridical Science from Harvard Law School in 1933. He was an assistant county attorney for Smith County, Texas, from 1927 to 1930. He entered academia as an associate professor at the University of Texas School of Law, from 1930 to 1932, and then as a Brandeis research fellow at Harvard Law School from 1932 to 1933.