John Yoo

  • Emanuel S. Heller Professor of Law
    Co-Faculty Director, Korea Law Center
    Director, Public Law & Policy Program
  • Tel: 510-600-3217 | Fax: 510-642-3856
  • Faculty Support Contact: Drew Kloss
John Yoo

John Yoo is the Emanuel Heller Professor of Law at the University of California at Berkeley, a Visiting Scholar at the American Enterprise Institute, and a Visiting Fellow at the Hoover Institution, Stanford University. 

His tenth book, Defender-in-Chief: Trump’s Fight for Presidential Power, was published last year by St. Martin’s Press.  Professor Yoo’s other books include Striking Power: How Cyber, Robots, and Space Weapons Change the Rules for WarPoint of Attack: Preventive War, International Law, and Global Welfare, and Crisis and Command: A History of Executive Power from George Washington to George Bush

Professor Yoo has published more than 100 articles in academic journals on subjects including national security, constitutional law, international law, and the Supreme Court.  He also regularly contributes to the editorial pages of the Wall Street Journal, New York TimesWashington PostLos Angeles Times, and National Review, among others.

Professor Yoo has served in all three branches of government.  He was an official in the U.S. Department of Justice, where he worked on national security and terrorism issues after the 9/11 attacks.  He served as general counsel of the U.S. Senate Judiciary Committee.  He has been a law clerk for Supreme Court Justice Clarence Thomas and federal appeals Judge Laurence Silberman.  He has been a visiting professor at Seoul National University in South Korea, the Interdisciplinary Center in Israel, Keio University in Japan, Trento University in Italy, the University of Chicago, and the Free University of Amsterdam.

At Berkeley, he supervises the Public Law and Policy Program, the Korea Law Center, and the California Constitution Center.  He also serves on the boards of the Pacific Legal Foundation, the Federalist Society’s Separation of Powers and Federalism Division, the Universidad Cientifica del Sur Law School, and the Asia-Pacific Law Institute at Seoul National University.

Professor Yoo graduated from Yale Law School and summa cum laude from Harvard College. At Berkeley, Professor Yoo directs the Public Law and Policy program and the Korea Law Center and is a winner of the Federalist Society’s Paul Bator award.


A.B., Harvard University (1989)
J.D., Yale University (1992)