Leo Goldberg (1913-1987) was an astrophysicist who carried out research into the composition of stellar atmospheres and the dynamics of the loss of mass from cool stars. His main subject of research was the study of the sun from space. Born in Brooklyn, New York to Polish immigrants, Goldberg received his degrees from Harvard and went on to be the director of three important observatories: University of Michigan (1946-60), Harvard (1960-71), and Kitt Peak National Observatory (1971-77). He played an important role in founding the Association of Universities for Research in Astronomy, Kitt Peak National Observatory, and the National Radio Astronomy Observatory. Goldberg was the president of the American Astronomical Society (1964-1966) and the International Astronomical Union (1971-1976).