Seth D. Eichenholtz was appointed as a United States Magistrate Judge for the Eastern District of New York on July 1, 2025. 

Prior to his appointment, Judge Eichenholtz served for three years as an Associate Deputy Attorney General at the United States Department of Justice, focused on national oversight of the Federal Bureau of Prisons. He managed work designed to ensure individuals in Federal custody had access to counsel, to increase the availability of recidivism reduction and reentry resources, and to address concerns about conditions of confinement. Before that, he was an Assistant United States Attorney in the United States Attorney’s Office for the Eastern District of New York’s Civil Division, where, for 15 years, he served as lead counsel for the United States in over 250 cases and supervised hundreds more. As an Assistant U.S. Attorney, he handled cases in a wide range of subject areas, including constitutional tort and civil rights, negligence, employment litigation, class action litigation, and affirmative civil enforcement. He successfully represented the United States in numerous trials in the Eastern District and on appeal to the Second Circuit. In 2014, Judge Eichenholtz was appointed as the Civil Division’s first Discovery Officer. In 2019, he was appointed as a Deputy Chief of the Civil Division and founded the office’s Prison Litigation practice. In 2021, Judge Eichenholtz was awarded the New York City Bar Association’s Henry L. Stimson Medal for outstanding performance as an Assistant U.S. Attorney. 

 Before becoming an Assistant U.S. Attorney, Judge Eichenholtz was an Assistant Corporation Counsel in the New York City Law Department’s Special Federal Litigation Division. In 2003, he was awarded the Law Department’s Legal Rookie of the Year Award. 

  Judge Eichenholtz has taught courses on fact and expert witness discovery, trial advocacy, general federal civil practice, medical malpractice case handling, settlement and mediation at the U.S. Department of Justice’s National Advocacy Center and the New York City Bar Association. Judge Eichenholtz served on the New York City Bar Association’s Federal Courts Committee and LGBTQ Rights Committee. He was also an Adjunct Professor of Clinical Law at Brooklyn Law School, teaching a seminar on Federal civil practice. 

  Judge Eichenholtz graduated from Binghamton University in 1999 with a B.A. He earned a J.D. cum laude from Syracuse University College of Law in 2002.