Professor Alexander K. A. Greenawalt joined the faculty of the Elisabeth Haub School of Law in 2006 from the firm of Debevoise & Plimpton LLP, where his practice focused on international disputes. He was a teaching fellow at Columbia Law School in 2005 and was previously a clerk for the Honorable Stephen F. Williams of the U.S. Court of Appeals for the District of Columbia Circuit. Professor Greenawalt is a graduate of Columbia Law School, where he was a James Kent Scholar and Articles Editor of the Columbia Law Review.
Professor Greenawalt’s research focuses on criminal law, international law, and the laws of war. His article, “With Intent to Destroy in Whole or in Part: Genocide, Ethnic Cleansing, and a Lost History,” was awarded the 2024 Goettel Prize for Faculty Scholarship, which is awarded based on blind review by a panel of external peer reviewers. He also received the 2018 Goettel Prize for his article "Targeted Capture," and the 2016 Goettel Prize for his article, “Foreign Assistance Complicity.” Additionally, he was the 2017 recipient of the Law School's Richard Ottinger Faculty Achievement Award. He has taught Constitutional Law, Criminal Law, International Law, Administrative Law, International Criminal Law, United States Foreign Relations Law, and National Security Law.
Professor Greenawalt was a Visiting Professor at Columbia Law School during the Spring 2017 and Spring 2026 semesters, and has also been a Visiting Professor at St. John’s Law School.