David Gordon Nathan (born May 25, 1929) is a pediatrician and hematologist. He is known for his authorship of Nathan and Oski's Hematology of Infancy and Childhood, a standard reference in pediatrics, currently in its seventh edition. Nathan remains an author on the current edition. Now retired, he was Robert A. Stranahan professor of pediatrics at Harvard Medical School and served as president of the Dana-Farber Cancer Institute. He was born in Boston.