Alan Charles Kors (born July 18, 1943) is the Henry Charles Lea Professor of History at the University of Pennsylvania, where he teaches the intellectual history of the 17th and 18th centuries. He has received both the Lindback Foundation Award and the Ira Abrams Memorial Award for distinguished college teaching. Kors graduated A.B. summa cum laude at Princeton University in 1964, and received his M.A. (1965) and Ph.D. (1968) in European history at Harvard University.
Kors has written on the history of skeptical, atheistic, and materialist thought in 17th and 18th-century France, on the Enlightenment in general, on the history of European witchcraft beliefs, and on academic freedom. He was also the Editor-in-Chief of the Encyclopedia of the Enlightenment, which was published in four volumes by Oxford University Press in 2002.
Kors co-founded – with civil rights advocate Harvey A. Silverglate – and served from 2000 to 2006 as chairman of the board of directors of the Foundation for Individual Rights in Education (FIRE).
He writes pieces for both libertarian and conservative journals on political matters. He is an occasional contributor to Reason. His essay "Can There Be An After Socialism?" was published by the journal Social Philosophy & Policy.
Kors has also been active in the defense of free speech since his arrival at Penn. In the widely covered 1993 "water buffalo incident", he defended Eden Jacobowitz against charges that he harassed a group of black sorority sisters. In the early morning hours, as the sorority was celebrating loudly outside the dorms, multiple students yelled from their windows, in various ways, for the sorority to cease. When the police came to question students, Jacobowitz volunteered that he yelled "Shut up, you water buffalo", a slur that was characterized as racist. The sorority members eventually dropped the charges. Kors later defended another University of Pennsylvania student in 2005 during a controversy surrounding the student's right to take a photo of other University students having sex against a dorm window.