Kenneth S. Warren (June 11, 1929 – September 18, 1996) was an American scientist, physician, educator and public health advocate. He was an expert on tropical disease, in particular schistosomiasis. Warren was born in Brooklyn, New York City in 1929 and earned his bachelor's degrees in history and literature at Harvard University in 1950 and his M.D. from Harvard Medical School in 1955. Warren then went on to the National Institutes of Health as a researcher before completing postgraduate work at the London School of Hygiene & Tropical Medicine. Warren taught on the faculty of Case Western Reserve University from 1963 to 1977 both in the school of medicine and in library science. In 1977 he joined the Rockefeller Foundation as director of health services, where he worked for the next ten y