Geoffrey Foucar Chew (June 5, 1924 – April 11, 2019) was an American theoretical physicist. He was known for his bootstrap theory of strong interactions. He also worked on the Manhattan Project. He was a professor of physics at the University of California, Berkeley from 1957. He was an emeritus professor from 1991 at Berkeley. He was also a physics faculty at the University of Illinois from 1950 to 1956. He was a student of Enrico Fermi. Chew's students included Nobel Prize in Physics-winning David Gross, and John Henry Schwarz. His awards included the Hughes Prize (1962), Lawrence Prize (1969) and Majorana Prize (2008). 