Christina Hioureas is a Visiting Faculty member at the UCLA School of law and teaches Critical Issues in Human Rights Law. Hioureas is a partner and Global Co-Chair of Foley Hoag LLP’s International Litigation & Arbitration Department, and Chair of the firm’s United Nations Practice Group. She represents States and State-owned entities in international disputes and public international law matters before international courts and tribunals and the United Nations, including on matters involving climate change, human rights, decolonization, anti-corruption, technology, construction, and energy. She has argued cases before all major arbitral bodies and arbitral rules (ICSID, UNCITRAL, ICC, LCIA, ICDR, AAA, SIAC, Swiss Rules), before the United Nation’s principle judicial organ—International Court of Justice (ICJ), as well as the International Tribunal for the Law of the Sea (ITLOS), and regional human rights tribunals. She advises States on matters before the United Nations and its bodies, including the UN General Assembly and the Security Council. Hioureas also frequently serves as presiding, sole, emergency, and co-arbitrator in international disputes.

In 2024, Hioureas was recognized as one of the “Top 10 Most Innovative Lawyers” by the Financial Times. She has also three times been awarded the Center for Justice and Accountability’s “Partners in Justice” award for her work on transitional justice in Somalia, Cambodia, and Chile. She has received repeated recognition from Chambers & Partners – Global and USA in the areas of Public International, International Arbitration, and as an Arbitrator; as well as by Who’s Who Legal - Arbitration as a “Thought Leader” and “Most Highly Regarded Partner- the Americas,” and has served as a Term Member of the Council on Foreign Relations (CFR).

Hioureas received her B.A. (highest honors) from the University of California Berkeley in Political Science and Peace & Conflict Studies, and her J.D. at the University of California Berkeley School of Law, where she received the American Jurisprudence Award in International Law and served as the Managing Editor of the Berkeley Journal of International Law. Her publications include, “Thawing the ‘Regulatory Chill’ Effects of Investor State Claims,” forthcoming in the Bahrain Chamber for Dispute Resolution International Arbitration Review (2025); “Climate, State, and Sovereignty: Self-Determination and Sea Level Rise,” Liechtenstein Institute on Self-Determination at Princeton University (2021); “Legal and Political Considerations with Respect to the Disappearance of States,” in New Knowledge and Changing Circumstances in the Law of the Sea (Brill, 2020); and “The Singapore Convention on International Settlement Agreements Resulting from Mediation: A New Way Forward?” in the Berkeley Journal of International Law (2019), “Transatlantic Environmental Regulation-Making,” in Transatlantic Regulatory Cooperation: The Shifting Roles of the EU, the US and California, (Edward Elgar Publications, 2011), among others.