Otto Fritz Meyerhof (April 12, 1884 - October 6, 1951) was a German-born physician and biochemist. He spent most of his childhood in Berlin, where he started his study of medicine. In 1912, he moved to the University of Kiel, where he became professor in 1918. In 1922, he was awarded the Nobel Prize in Medicine, with Archibald Vivian Hill, for his work on muscle metabolism, including glycolysis. In 1929 he became one of the directors of the Kaiser Wilhelm Institute for Medical Research, a position he held until 1938. Fleeing the Nazi regime, he moved to Paris in 1938. He then moved to the United States in 1940, where he became a guest professor at the University of Pennsylvania. Meyerhof died in 1951 at the age of 67.