Warren Winkelstein Jr. (1 July 1922 – 22 July 2012) was an American epidemiologist, professor in the School of Public Health at the University of California, Berkeley, and a member of the Institute of Medicine of the U.S. National Academy of Sciences. During the 1960s Winkelstein was considered one of the leading epidemiologists of the time.Winkelstein was born in Syracuse, New York, the son of a prominent lawyer. After graduating from the Putney School, he served in the U.S.