Frederick J. "Fred" Ramsdell (born 4 December 1960, in Elmhurst, Illinois) is an American immunologist. Ramsdell graduated from the University of California, San Diego in 1983 with a bachelor's degree in biology and from the University of California, Los Angeles in 1987 with a Ph.D. in immunology. As a postdoc he worked at the National Institutes of Health and subsequently in biotech companies in the Seattle area. He has served as a senior executive at several biotech companies , ZymoGenetics, Novo Nordisk, and aTyr Pharma. Since the beginning of 2016, he has been Research Director at the Parker Institute for Cancer Immunotherapy in San Francisco.