Ralph Bown (1891 – July 1971) was a noted American radio pioneer. Bown was born in Fairport, New York, and received his M.E., M.M.E., and Ph.D. degrees from Cornell University where he also taught physics. He served as a captain in the United States Army Signal Corps in World War I, where he led vacuum tube development as head of its radio laboratories technical department, then joined the American Telephone and Telegraph Company research department, which in 1934 became Bell Laboratories.