Orin Kerr is a Professor at Stanford Law School, where he teaches and writes in the area of criminal law and criminal procedure. He helped found the field of computer crime law, which studies how traditional legal doctrines must adapt to digital crime and digital evidence. He is widely considered a leading authority on the Fourth Amendment.

Kerr has authored more than eighty law review articles, over half of which have been cited in judicial opinions (including eight different articles that have been cited in U.S. Supreme Court opinions). He is regularly listed as among the most cited and most influential law professors in the United States. Kerr has also authored popular casebooks and co-authored the leading criminal procedure treatise. His new book is The Digital Fourth Amendment: Privacy and Policing in Our Online World (Oxford 2025).

Kerr has briefed and argued cases in the United States Supreme Court and three federal circuits. He has testified six times before Congressional committees. From 2013-2019, Kerr served on the Advisory Committee for the Federal Rules of Criminal Procedure by appointment of Chief Justice Roberts.

Before attending law school, Professor Kerr earned undergraduate and graduate degrees in mechanical engineering. He has served as a law clerk for Judge Leonard I. Garth of the U.S. Court of Appeals for the Third Circuit and Justice Anthony M. Kennedy of the United States Supreme Court. He has also served as a trial attorney in the Computer Crime and Intellectual Property Section at the U.S. Department of Justice, and as a Special Assistant U.S. Attorney in the Eastern District of Virginia.

Prior to joining the Stanford Law faculty, Kerr was a law professor at George Washington University, the University of Southern California, and University of California at Berkeley. He also has been a visiting professor at the University of Chicago, the University of Pennsylvania, and Yale.