Jack M. Balkin (born August 13, 1956) is an American legal scholar. He is the Knight Professor of Constitutional Law and the First Amendment at Yale Law School. Balkin is the founder and director of the Yale Information Society Project (ISP), a research center whose mission is "to study the implications of the Internet, telecommunications, and the new information technologies for law and society." He also directs the Knight Law and Media Program and the Abrams Institute for Free Expression at Yale Law School.