Mr. O-Gon Kwon  is an attorney-at-law at Kim & Chang in the Republic of Korea. Since December 2025, he has served as a member of the Board of Directors of the Trust Fund for Victims of the International Criminal Court (ICC). He has also been a member of the Advisory Committee on the Nomination of Judges of the ICC since December 2024.

Mr. Kwon served as a permanent judge of the United Nations International Criminal Tribunal for the former Yugoslavia (ICTY) from November 2001 to March 2016, and as Vice-President of the Tribunal from 2008 to 2011. During his tenure, he sat on the trial of Slobodan Milošević, former President of Serbia and the Federal Republic of Yugoslavia, and presided over the trial of Radovan Karadžić, former Bosnian Serb leader.

He later served as President of the Assembly of States Parties (ASP) to the Rome Statute of the ICC from December 2017 to February 2021, the ASP being the Court’s management oversight and legislative body.

Prior to his international judicial career, Mr. Kwon served for 22 years in the judiciary of the Republic of Korea, holding judicial posts in several courts.

Mr. Kwon holds an LL.B. (1976) from Seoul National University College of Law and an LL.M. (1983) from the Graduate School of Seoul National University. He completed the Judicial Research and Training Institute programme of the Supreme Court of Korea in 1979 and later obtained an LL.M. (1985) from Harvard Law School.