John Gleeson

Visiting Lecturer in Law

(fall term)


John Gleeson is a Visiting Lecturer in Law at Yale Law School while also teaching at Harvard Law School and New York University School of Law. Gleeson is a trial and appellate lawyer and company advisor.

FULL BIOGRAPHY
John Gleeson

Contact Information



Faculty Assistant


Marilyn Serna

Education & Curriculum Vitae


J.D., University of Virginia School of Law, 1980

B.A., Georgetown University, 1975

Courses Taught


  • Sentencing

John Gleeson is a Visiting Lecturer in Law at Yale Law School while also teaching at Harvard Law School and New York University School of Law. Gleeson is a trial and appellate lawyer and company advisor. His current practice situates him as a litigation partner in the White Collar & Regulatory Defense and Commercial Litigation Groups at Debevoise & Plimpton LLP. Before joining his current firm, Gleeson was a United States District Judge for 22 years in the eastern district of New York, sitting in Brooklyn. He published more that 1,500 opinions and presided over more than 200 civil and criminal jury trials during that time. Before his time as a judge, Gleeson was a federal prosecutor serving as Chief of the Criminal Defense, Chief of Appeals, Chief of Special Prosecutions, and Chief of Organized Crime. He was the lead prosecutor in the murder and racketeering convictions of John Gotti and Victor Orena, bosses of the Gambino and Colombo crime families.