Norman Buel Judd (January 10, 1815 – November 11, 1878) was a U.S. Representative from Illinois, and the grandfather of U.S. Representative Norman Judd Gould of New York. Born January 10, 1815 in Rome, New York, son of Norman Judd and Catherine Van der Heyden. He received a liberal schooling. He studied law. He was admitted to the bar in 1836 and commenced practice in his hometown. He moved to Chicago, Illinois in 1836 and continued the practice of his profession. He served as city attorney 1837–1839. He served as a member of the Illinois Senate from 1844 to 1860. He served as delegate to the 1860 Republican National Convention. He was appointed Minister Plenipotentiary to the Kingdom of Prussia by President Abraham Lincoln on March 6, 1861, and served until 1865.