Morris Cohen (November 27, 1911 – May 27, 2005), born in Chelsea, Massachusetts, United States, was a Jewish American metallurgist, who spent his entire career affiliated with MIT. He graduated from his undergraduate degree in 1933, receiving his doctorate three years later, and was appointed assistant professor of metallurgy in 1937. He was appointed Professor of Physical Metallurgy in 1946, and an Institute Professor in 1975. He took emeritus status in 1982.
He has been awarded the gold medal by the ASM International (formerly American Society for Metals) (1968) and the Japan Institute of Metals (1970), the National Medal of Science in 1976, and the Kyoto Prize in 1987.