Hanna Holborn Gray (born October 25, 1930) is an American historian of Renaissance and Reformation political thought and Professor of History Emerita at the University of Chicago.

[1] Her older brother, Frederick, became a White House aide and professor of foreign policy at Johns Hopkins' School of Advanced International Studies.

(She took her cue from Harvard professor, Helen Maud Cam, who earlier in the decade became the first woman to attend faculty morning services in the over 300 years of the institution just by showing up every day and sitting down).

[citation needed] Gray has also served as a director, board member or trustee of the Harvard Corporation, the Yale Corporation, the Smithsonian Institution, JP Morgan Chase, the Andrew W. Mellon Foundation, the Marlboro School of Music, the Council on Foreign Relations, the Concord Coalition, the Mayo Clinic, the Brookings Institution, and Bryn Mawr College.

Gray has received honorary degrees from more than sixty institutions, including the University of Chicago, The College of William and Mary, Harvard, Oxford, Yale, Brown, Columbia, Princeton, and Duke.