Gary S. Katzmann

Visiting Lecturer in Law

(spring term)


Gary S. Katzmann is a Visiting Lecturer in Law at Yale Law School. In 2016, he was appointed by President Barack Obama to serve as a Judge of the United States Court of International Trade, which is established under Article III of the United States Constitution and has nationwide jurisdiction over civil actions arising out of the international trade laws of the United States. 

FULL BIOGRAPHY
Gary S. Katzmann

Contact Information



Education & Curriculum Vitae


M.P.P.M., Yale School of Management, 1979
J.D., Yale Law School, 1979

M.Litt., Oxford University, 1976 
A.B., Columbia College, 1973

Courses Taught


  • International Trade Law

Gary S. Katzmann is a Visiting Lecturer in Law at Yale Law School. In 2016, he was appointed by President Barack Obama to serve as a Judge of the United States Court of International Trade, which is established under Article III of the United States Constitution and has nationwide jurisdiction over civil actions arising out of the international trade laws of the United States. Since commencing his service on the United States Court of International Trade, Katzmann has also sat by designation on the United States Courts of Appeals for the First Circuit, the Second Circuit, and the Ninth Circuit. Prior to appointment to the federal bench, he served from 2004 to 2016 as an Associate Justice of the Massachusetts Appeals Court, adjudicating the full array of civil and criminal matters.

Before becoming a judge, he was an Assistant United States Attorney in the District of Massachusetts, where he variously held the positions of Chief Appellate Attorney, Deputy Chief of the Criminal Division, and Chief Legal Counsel, and engaged in criminal and civil litigation in the trial and appellate courts. He also served on detail to the Department of Justice in Washington, D.C. as an Associate Deputy Attorney General focusing on criminal justice policy, and on detail to the Federal Bureau of Investigation. He is a recipient of the Department of Justice’s Director’s Awards for excellence in appellate advocacy, and for a successful terrorism prosecution.

He has been a Lecturer at Harvard Law School and a Research Associate at Harvard Law School’s Center for Criminal Justice. He has been a Fellow at Harvard’s Kennedy School of Government and the Governance Institute, directing a project on juvenile justice. He has also been a member of the faculty of the NYU Law School New Appellate Judges Seminar. His publications include the book, Inside the Criminal Process. He is also the editor and contributing author of Securing Our Children’s Future: New Approaches to Juvenile Justice and Youth Violence. He has been actively engaged in civic education of school children.

Katzmann received his A.B., summa cum laude from Columbia College, an M.Litt. from Oxford University, an M.P.P.M. from the Yale School of Management, and a J.D. from Yale Law School.  He served as a law clerk to Judge Leonard B. Sand of the United States District Court for the Southern District of New York and to then Judge Stephen G. Breyer of the United States Court of Appeals for the First Circuit.