David I. Kertzer (born February 20, 1948 in New York City) is an American anthropologist, historian, and academic leader specializing in the political, demographic, and religious history of Italy. He is Paul Dupee, Jr. University Professor of Social Science, Professor of Anthropology, and Professor of Italian Studies at Brown University. His book The Pope and Mussolini: The Secret History of Pius XI and the Rise of Fascism in Europe (2014) won the 2015 Pulitzer Prize for Biography or Autobiography.