Szent-Györgyi von Nagyrapolt, Albert (1893-1986), a Hungarian-American biochemist. In 1928 he isolated ascorbic acid from adrenal glands and later showed it to be identical with vitamin C. For this work and for his studies of oxidation in tissues, Szent-Györgyi received the 1937 Nobel Prize for physiology or medicine. He also studied muscle contractions and discovered the protein actin.

Szent-Györgyi was born in Budapest, Hungary. He received an M.D. from the University of Budapest (1917) and a Ph.D. from Cambridge University (1927). He came to the United States in 1947 and joined the Marine Biological Laboratory at Woods Hole, Massachusetts, as a research scientist. In 1955 he became a citizen.