Justina Uriburu is an international law scholar with a special interest in international dispute settlement and the history and theory of international law. She is a Lecturer in International Law at the University of Manchester and the Co-Director of the Manchester International Law Centre (MILC). She is currently on research leave, supported by a two-year grant from the Swiss National Science Foundation. She is also Co-Editor of the EJIL: Talk! blog.

Justina’s current writing projects challenge traditional assumptions, lenses, and histories of international dispute settlement. She is working on a book that presents a new history of international dispute settlement and its relationship to peace, with a focus on the Americas. In parallel, she is examining the influence of law firms on states’ decisions regarding litigation venues and the framing of their legal claims.

Her work has been published in leading journals such as the American Journal of International Law, the European Journal of International Law, the Leiden Journal of International Law, and the London Review of International Law. She co-edited the special issue ‘Bogotá at 75’, published in the Journal of the History of International Law, which explores critical junctures in American states’ creation of a regional order. She also writes shorter interventions on current developments in blogs and other platforms.

Justina was trained in Argentina, the United Kingdom, the United States, and Switzerland. After earning her law degree at Universidad Torcuato Di Tella, she completed an LLM in International Law at University College London as a Chevening Scholar. She received her PhD in International Law summa cum laude from the Geneva Graduate Institute, where her thesis was awarded a special distinction by the examining committee. During her time at the Geneva Graduate Institute, she was also awarded a Gallatin Fellowship, which allowed her to spend a semester as a Visiting Scholar at American University and conduct archival research in Washington, DC. Following her doctorate, she held a Max Weber Fellowship at the European University Institute in Florence.

In addition to her editorial work at EJIL: Talk!, Justina sits on the Executive Board of the European Journal of International Law and the Editorial Board of the Latin American and Caribbean Journal of International Law. She also actively collaborates with the Latin American Society of International Law, having served on the Organizing Committee of its 2018 and 2025 Biennial Conferences.

Justina combines academic expertise with first-hand experience in international adjudication. She works as a consultant in international law and is involved in cases before the International Court of Justice. She began her legal career in the public sector in Buenos Aires, Argentina, at the Office of Crimes against Humanity, advising federal prosecutors on international criminal law in the domestic prosecution of crimes against humanity committed during the last dictatorship in Argentina (1976–1983). She was later appointed Law Clerk to the Office of the Attorney General, where she drafted legal opinions on public interest cases brought before the Supreme Court of Argentina.