Seymour Melman, American engineer and author (d. 2004)
Seymour Melman (December 30, 1917 – December 16, 2004) was an American professor emeritus of industrial engineering and operations research at Columbia University's Fu Foundation School of Engineering and Applied Science.

He wrote extensively for fifty years on "economic conversion", the ordered transition from military to civilian production by military industries and facilities. Author of The Permanent War Economy and Pentagon Capitalism, he was an economist, writer, and gadfly of the military-industrial complex.