Jonathan L. Zittrain (born 24 December 1969) is an American professor of Internet law and the George Bemis Professor of International Law at Harvard Law School. He is also a professor at the Harvard Kennedy School, a professor of computer science at the Harvard School of Engineering and Applied Sciences, and co-founder and director of Harvard’s Berkman Klein Center for Internet & Society. Previously, Zittrain was Professor of Internet Governance and Regulation at the Oxford Internet Institute of the University of Oxford and visiting professor at the New York University School of Law and Stanford Law School. He is the author of The Future of the Internet and How to Stop It, as well as co-editor of the books, Access Denied (MIT Press, 2008), Access Controlled (MIT Press, 2010), and Access Contested (MIT Press, 2011).
Zittrain works in several intersections of the Internet with law and policy including intellectual property, censorship and filtering for content control, and computer security. He founded a project at the Berkman Klein Center for Internet & Society that develops classroom tools. In 2001 he helped found Chilling Effects, a collaborative archive created by Wendy Seltzer to protect lawful online activity from legal threats. He also served as vice dean for Library and Information Resources at Harvard.