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Luke Ryan

Luke Ryan



New York City
T: 212.808.8100
F: 212.808.8108

Luke Ryan regularly represents clients in civil and criminal tax controversies, white-collar criminal defense, regulatory enforcement matters, and internal investigations. Luke joined Kostelanetz LLP in 2021 after clerking for the Honorable John F. Keenan, United States District Judge for the Southern District of New York. Prior to clerking for Judge Keenan, Luke was an associate in the New York office of Cahill Gordon & Reindel; he served as an infantry officer in the United States Army before attending law school.

While serving as Judge Keenan’s law clerk from 2019 to 2021, Luke drafted decisions on dispositive motions and assisted during preparations for oral arguments, conferences, and trials in civil and criminal cases. Noteworthy matters on which Luke assisted include motions to dismiss in a $10 billion fraud and tortious interference with contract suit, $200 million breach of contract and fiduciary duties case, and $100 million insurance dispute; and summary judgment motions in a Securities and Exchange Commission enforcement action, Federal Tort Claims Act medical malpractice case, and $5 million breach of contract dispute which was subsequently affirmed by the Second Circuit.

During Luke’s tenure at Cahill, he was part of a team representing a defendant in the Southern District of New York who was charged with wire fraud conspiracy, defrauding the United States, and other offenses. Luke also served on a variety of other teams representing a global financial institution in multiple complex regulatory and enforcement proceedings, and he second-chaired a pro bono criminal appeal argued in the New York Appellate Division–First Department and subsequent criminal leave application to New York Court of Appeals Associate Judge Eugene M. Fahey.

Luke received his J.D. in 2017 cum laude from Fordham University School of Law, where he served as an Articles & Notes Editor on the Fordham Law Review and competed in the 2016 Willem C. Vis International Commercial Arbitration Moot in Vienna, Austria. While in law school, Luke’s note was awarded the John D. Feerick Award during the Law Review’s 2016 Alumni Dinner, and he authored two other pieces which were published in the St. Thomas Journal of Complex Litigation and the Barry Law Review. Luke graduated from the University of Virginia in 2002 with a Bachelor of Arts in chemistry and a minor in history. He served in the United States Army and Army National Guard from 2002 to 2014, and in 2013, Luke authored an article published in Infantry Magazine titled “Lessons from a Change of Command.”

Fordham University School of Law, J.D. (2017)

University of Virginia, B.A. (2002)

New York

U.S. District Court for the Southern District of New York