John Patrick Diggins (San Francisco,[1] 1935[2] - Manhattan, 28 de enero de 2009)[1] fue un historiador de las ideas estadounidense, profesor en la Universidad de la Ciudad de Nueva York.
[3] Fue autor de obras como Mussolini and Fascism: The View from America (Princeton University Press, 1972),[4] Up from Communism: Conservative Odysseys in American Intellectual History (Harper & Row, 1975),[5] The Bard of Savagery: Thorstein Veblen and Modern Social Theory (Seabury Press, 1978),[6] The Lost Soul of American Politics: Virtue, Self-Interest, and the Foundations of Liberalism (Basic Books, 1984),[7] The Promise of Pragmatism: Modernism and the Crisis of Knowledge and Authority (University of Chicago Press, 1994),[8] Max Weber: Politics and the Spirit of Tragedy (Basic Books, 1996),[9] Ronald Reagan: Fate, Freedom, and Making of History (W. W. Norton, 2006),[3] Eugene O'Neill's America: Desire Under Democracy (University of Chicago Press, 2007)[10] o Why Niebuhr Now?
(2011),[11] entre otras.