Great Irish Fair

St. Thomas More Award – Edward O’Callaghan

The Great Irish Fair presents this award in honor of the brilliant author, the chancellor and head of the English Judiciary, a great spiritual leader and moral force who was martyred for his Catholic faith. St. Thomas More is the patron saint of lawyers and is an inspiration to judges.


Edward O’Callaghan is a partner in the New York Office of the international law firm of Clifford Chance LLP. He has more than 20 years of litigation experience in criminal and civil matters both in private practice and in government service.

His practice focuses on defending financial institutions, public companies, asset management firms, and individuals in international and domestic regulatory investigations and criminal prosecutions, including cases involving allegations of securities fraud, insider trading and market manipulation, bank fraud, money laundering, accounting fraud, health care fraud, corruption, RICO, criminal antitrust, and matters involving alleged violations of the U.S. export controls and the FCPA.

From 1999 until 2008, he was an assistant U.S. attorney for the Southern District of New York, and co-chief of the Terrorism and National Security Unit during the last three years of his tenure. He acted as the lead prosecutor on a number of high-profile matters.

He is a recipient of the U.S. Attorney General’s Award for Distinguished Service and the Director’s Award for Superior Performance as an Assistant U.S. Attorney.

He graduated from Immaculate Heart of Mary Parish Grammar School, Kensington; Xavier H.S., Manhattan, where he serves as a member of the Xavier Board of Trustees; Georgetown University and NYU School of Law.

After law school, he was Law Clerk to the Honorable Kevin Thomas Duffy, United States District Judge for the Southern District of New York.

Edward lives in White Plains, with his wife, Kitty (Georgetown), and their children, Harrison (18) Xavier H.S. ’17, Finnian (15) Xavier H.S. ’20, and Mary (12). The family enjoys weekend days visiting with Mom and the rest of the family in their Breezy Point beach home.