David Sidney Feingold (Hebrew: דוד סידני פיינגולד; November 15, 1922 – September 26, 2019) was an American biochemist.
From 1947 to 1949 he continued his studies in chemistry at the Chemical Institute at the University of Zurich, in Switzerland.
Following receipt of his PhD he returned to the United States and served as a research assistant at the University of California from 1956 to 1960.
He also served as an invited professor in Switzerland, Brazil, and Argentina, as well as at the University of Colorado.
[1] In 1957 Feingold was awarded the Israel Prize, in exact sciences, jointly with his research partner Shlomo Hestrin and their student Gad Avigad.