Nicolas Guillou

Nicolas Guillou is a French jurist who has served as a judge of the Kosovo Specialist Chambers and the International Criminal Court. In the former role he issued the arrest warrant for Salih Mustafa.

Education and professional career

Nicolas Guillou earned a master’s degree in International Criminal Law and Criminal Policy in Europe from the Sorbonne University. He graduated from the French National School for the Judiciary, where he taught and also managed training programs for judges specializing in international justice.

Career

Criminal court judge at the International Criminal Court
Judge at the Civil Law Affairs Directorate of the French Ministry of Justice
Adviser to the French Ministers of Justice and Foreign Affairs
Liaison judge/Justice Attaché for the United States, Washington D.C.
Chef de Cabinet to the President of the Special Tribunal for Lebanon
International judge in the Kosovo Specialist Chambers since 2019
Head of the legal team, drafting decisions, and adviser to the President for legal, diplomatic, political, and administrative matters
US Sanctions

On August 20, 2025, the US Treasury's Office of Foreign Assets Control imposed sanctions on judge Guillou as a member of the pre-trial panel that approved and issued arrest warrants against Israeli Prime Minister Netanyahu and former defense minister Gallant. Guillou’s name was listed among 15,000 people, including Al-Qaeda terrorists, drug cartel members, and Vladimir Putin. The effect of the sanctions means that Guillou is banned from US territory. Under US law, the sanctions also prohibit any American individual or legal entity, as well as any person or company, including their overseas subsidiaries, from providing services to him. This has had the effect of blacklisting him from the world's banking system.

Nicolas Guillou

Education and professional career

Career

US Sanctions