Christina G. Hioureas

Counsel, Chair, United Nations Practice Group - New York

Christina Hioureas

Contact Information


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Christina Hioureas is a counsel in the firm's International Litigation & Arbitration practice and chair of the firm's United Nations practice group. Christina represents States, private and State-owned entities, and individuals on international disputes and public international law matters and advises States on matters before the United Nations and its bodies. She also serves as arbitrator in international commercial disputes.

Christina has particular experience on issues involving the Balkans, the Mediterranean, North Africa, Europe, the Caucusus, the Middle East, Africa and Latin America. This includes: investment treaty claims (ICSID, UNCITRAL); international commercial arbitration (ICC, AAA/ICDR, LCIA, Swiss Rules); international litigation; treaty drafting and interpretation; climate change; international human rights law in international tribunals as well as domestic courts; capacity building trainings for State Sovereigns; and energy law and pricing disputes.

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  • The Hague Academy of International Law, Public International Law, 2011
  • University of California Berkeley School of Law Boalt Hall, J.D., American Jurisprudence Award - International Law; Lowell and Jensen Public Service Award, 2007
  • University of California, Berkeley, B.A., highest honors, 2004


English, Greek, Spanish

Representative Experience

International Investment Arbitration 

  • Africa: Counsel to African State in UNCITRAL construction project claim.
  • Middle East: Counsel to technology company in a claim involving the expropriation of real estate investment.
  • Balkans: Counsel to energy company in an ICSID claim relating to expropriation of storage facilities.
  • Middle East: Counsel to French energy company in ICSID claim relating to breach of contract with respect to plant function and gas sales.
  • North America: Advised on NAFTA claim involving due process claims with respect to an acquisition and related court actions.
  • Latin America: Represented company in an ICSID arbitration involving the expropriation of a plant and related offtake agreement.
  • Argentina: Represented the United States Council for International Business amicus curiae brief before the US Supreme Court in a case regarding preconditions to international investment arbitration.
  • Latin America: Advised in respect of a potential ICSID claim relating to an alternative energy investment in a Latin American state.
  • Caucusus: ICSID arbitration involving issues of expropriation related to a highway construction and casino hotel services concession.
  • Latin America: Advised on an ICSID claim regarding expropriation of an airline.
  • Latin America: Counsel to a major multinational corporation on an ICSID claim involving the expropriation of a glass plant.
  • Asia: Advised an Eastern European entity on an ICSID claim against a Southeast Asian state involving contractual issues in the power sector.
  • Balkans: Represented a consortium of companies in a claim before the European Court of Human Rights involving the unlawful tender of a public works contract and the right to a fair trial.

International Commercial Arbitration (ICC, Swiss Rules, ICDR, AAA)

  • Southern Europe: Counsel to a European gas company in an ICC arbitration involving a gas pricing claim.
  • Russia: Counsel to a US-based energy company in an arbitration under the Swiss Rules of International Arbitration in a dispute arising out of power plant construction projects in Russia.
  • Asia: Counsel to various tech companies on a series of related international arbitration claims under ICC and ICDR Rules for breach of contract and fraud..
  • Southern Europe: Advised a European energy company in respect of price revision negotiations.
  • Africa: Representing a private entity in and before the Dispute Resolution Board (the mediation arm of the ICC) with respect to an investment in Uganda.

Public International Law and Other Sovereign Advisory Work 

  • Africa: Counsel to African State in advisory opinion proceedings regarding the decolonization process before the International Court of Justice.
  • Europe: Represented the Republic of Bulgaria in a tort claim before the Southern District of New York under the Foreign Sovereignty Immunities Act.
  • Africa: Counsel to African State on drafting of UN General Assembly resolution and supporting memoranda.
  • Asia: Advised an Asian state on claims to hydrocarbon royalty by a provincial government and questions of law of the sea.
  • Asia: Advised a private entity on maritime boundary/oil concession issues in the Bay of Bengal.
  • Africa: Advised the Federal Republic of Somalia on questions of international law and the draft Provisional Constitution.
  • Middle East: Advised a Middle Eastern state on sovereign immunity and international human rights law.
  • Europe: Advised a state on potential claims relating to state succession and unlawful expropriation.
  • Middle East: Advised in respect to ATS/Torture Victim Protection Act claim.
  • Europe: Drafted UN interventions on International Law Commission report chapters, including on the obligation to prosecute or extradite; establishment of customary international law; guidance on interpretation of most favored nation clauses; and the Rome Statute and the Kampala Amendments.

International Human Rights 

  • Cambodia: Represented third party in a case involving crimes against humanity, torture, cruel treatment, and extrajudicial killings brief before the Extraordinary Chambers in the Court of Cambodia.
  • Chile: Representing the family members of the late folk musician, Victor Jara, in an Alien Tort Statute/Torture Victim Protection Act claim alleging crimes against humanity, extrajudicial killing, torture, cruel treatment, arbitrary detention: Jara v. Barrientos.
  • Bosnia: Representing an intervening party in a claim before the European Court of Human Rights Dayton Accord power sharing Constitutional structure in relation to the right to run for office and the right to vote: Pilav v. Bosnia and Herzegovina.
  • Somalia: Counsel to the Legal Adviser to the President of Somalia and leading human rights activist in a torture claim under the Alien Tort Statute/Torture Victims Protection Act against a former Somali Colonel during the Siad Barré dictatorship: Ahmed v. Magan.
  • Europe: Advised the Greek-Orthodox Archdiocese on the protection of cultural property.
  • Africa: Advised various energy companies on corporate social responsibility and issues of liability under the Alien Tort Statute and Torture Victim Protection Act.
  • North America: Advised on a claim before the Inter-American Commission on Human Rights involving the legality of luring under international law.    
  • United States: Argued a petition for habeas corpus and the secured release of a victim of intimate partner battering and its effects who was wrongfully convicted of second-degree murder: In re Hammond.
  • United States: Counsel to an advocacy group in a disability discrimination claim against the state of California: California Association of Mental Health Patients’ Rights Advocates v. California.

Professional Experience

  • Teaching Staff, University of Piraeus, Department of International & European Studies - Energy Strategy, Law & Economics Program
  • Adjunct Associate Professor of Law, Fordham University School of Law
  • Graduate Student Instructor, UC Berkeley, Peace & Conflict Studies and Political Science Departments
  • “International Commercial Arbitration: Greece,” Global Arbitration Review (2018)
  • “International Commercial Arbitration: Cyprus,” Global Arbitration Review (2018)
  • "A New Legal Framework for the Enforcement of Settlement Agreements Reached Through International Mediation: UNCITRAL Concludes Negotiations on Convention and Draft Model Law,"  EJIL Talk, 26 March 2018.  
  • "Framework Agreement between the Government of the Republic of Cyprus and the Government of the Arab Republic of Egypt Concerning the Development of Cross-Median Line Hydrocarbons Resources," International Maritime Boundaries, 1-15 (2017)
  • "Sovereignty Disputes and Offshore Development of Oil and Gas," Journal of Energy and Natural Resources Law (with B. Guthrie) (2017)
  • Natural Resources and the Law of the Sea (co-editor, with L. Martin and C. Salonidis, Juris Publishing, (2017)
  • "Kiobel v. Royal Dutch Petroleum: Is Corporate Liability Under the Alien Tort Statute On its Way Out?," Berkeley J. Int’l L. Publicist, Vol. 9, (2011)
  • "Transatlantic Environmental Regulation-Making," in Handling Environmental Global Challenges: California, the United States and the European Union, Leuven Centre for Global Governance Studies (2010), republished in, Transatlantic Regulatory Cooperation: The Shifting Roles of the EU, the US and California, Edward Elgar Publications, (2011)
  • "Glamis Gold, Ltd v. United States: A Case Study on Disclosure Procedure in International Arbitration," 2 World Arb & Mediation Rev 3, (2008)
  • "US Discovery in Aid of International Legal Proceedings: Developments Since the Intel Decision Under Section 1782," 4 Deutsch-Amerikanische Juristen-Vereinigung 177, (2006)
  • "Behind the Scenes of Protocol No. 14: Politics in Reforming the European Court of Human Rights," 24 Berkeley J. Int’l L 718, (2006)

Foley Hoag Alerts & Updates


  • Featured in Who's Who Legal in International Arbitration, Global Arbitration Review (2017).
  • Global Arbitration Review (2015 and 2016), recognized as “an absolutely stellar lawyer” and “an eloquent advocate with a commanding presence before the tribunal. She is academically distinguished, yet commercially minded; tough and powerful yet elegant and eloquent; she memorises all intricacies of the case yet always keeps the big picture and strategy in mind.”
  • Center for Justice & Accountability “Partners in Justice Award” (2015), for her work on Jara v. Barrientos, which brought to light atrocities committed in Chile during the Pinochet regime; and (2013), for her work on Ahmed v. Magan, the first decision to hold a member of Somalia's notorious National Security Service accountable for human rights violations.
  • Legal 500 (2014), recognized as “very impressive” and “solid in international arbitration and public international law."
  • Greek America Foundation's “40 Under 40” Award (2014) for work in public international law, human rights and energy law.
  • Legal 500 Latin America (2014), recognized as “highly regarded.”


  • Council on Foreign Relations, Elected Term Member
  • Atlantic Council, Elected Member
  • American Society of International Law (ASIL), Executive Council
  • European Society of International Law (ESIL)
  • British Institute of International and Comparative Law (BIICL)
  • American Bar Association and International Bar Association
  • Member of the Board of Directors of: Tanenbaum Center for Interreligious Understanding and the Hellenic American Cultural Foundation   
  • “Potential Legal Solutions in the Destruction of Sacred Sites,” Third International Religious Freedom Conference (Washington, D.C., December 2017)
  • “The Potential Effects of Rising Sea Levels on Maritime Entitlements and Questions of Statehood,” Yeosu Academy of International Law (Yeosu, Republic of Korea, November 2017)
  • “Introduction to International Dispute Resolution,” Yeosu Academy of International Law (Yeosu, Republic of Korea, November 2017)
  • “International Water Conflict and Cooperation: Grappling with the Allocation of Freshwater Between States in the Face of Climate Change,” 95th Annual Meeting of the American Branch of the International Law Association, International Law Weekend (New York, October 2017)
  • “The Potential Effects of Rising Sea Levels on Maritime Entitlements,” 18th Open-Ended Informal Consultative Process on Oceans and the Law of the Sea, The Effects of Climate Change on Oceans, United Nations Headquarters (New York, May 2017) 
  • "Climate Change Arbitration: The Key to 'Climate Justice for All' After the Paris Agreement,” ABA Section of International Law Spring Meeting (Washington, D.C., April 2017)
  • “New Frontiers in the Law of the Sea,” Universidad del Pacífico (Valparaiso, Chile, April 2017)
  • "Defense of Land and Water as a Strategy to Eradicate Poverty,” United Nations Commission for Social Development, United Nations Headquarters (New York, February 2017)
  • “Recent Developments in Bilateral and Multilateral Investment Treaties and Dispute Settlement Systems: Efforts by U.N. Member States for a More Balanced Way Forward,” New York Bar Association, Committee on the United Nations (New York, February 2017)
  • “Transboundary Groundwater and International Law: Water, Peace, and Security.” United Nations Event on the Protection and Management of Transboundary Groundwater: Legal Issues and the Human Right to Water, UN Headquarters (New York, December 2016)
  • “Recent Developments in International Investment Arbitration,” New York Bar Association, JAMS Mediation, Arbitration, ADR Services (New York, December 2016)
  • Podcast, “Meet the Chair of Foley Hoag’s UN Practice Group,” Lawyers Weekly, (November 2016)
  • “International Law and the War in Syria,” The Fletcher School of Law and Diplomacy (Cambridge, MA, November 2016)
  • “The Report of the International Court of Justice,” United Nations General Assembly (New York, October 2016)
  • “Silk Road Energy Projects - Oil & Gas, Nuclear, Renewables,”  The Silk Road Summit - 1st Annual Conference: Exploring Business, Trade & Investment Opportunities on the New Silk Road, The United States Capitol Building (Washington, D.C., September 2016)
  • “Beauty and the Beast:  From Populism to Orthodoxy, Foreign Investment in Latin America,” Latin Lawyer 7th Annual Private Equity Conference (New York, September 2016)
  • “Legal Issues Related to Energy Maritime Transportation,” Third Annual International Seminar on Energy and Shipping, Institute of Energy for South-East Europe (Athens, Greece, April 2016)
  • “Emerging Frontiers in the South China Sea,” Panel Chair, Annual Meeting of the American Society of International Law (Washington, D.C., April 2016)
  • “The Report of the International Court of Justice,” United Nations General Assembly (New York, October 2015)
  • “Transparency in International Investment Arbitration,” ICC Forum on “In Defense of International Commercial Arbitration: Lessons to Be Learned from Investor-State Arbitration (New York, October 2015)
  • “Post-Conflict Security in Somalia: A Case Study in U.S. Federal Court,” New York University Center for Global Justice and Human Rights (New York, February 2015)
  • Year in Review: Key Decisions and Developments in Investor-State Arbitration,(New York, January 2015)
  • “Multilateral Home State Efforts to Regulate Foreign Investment,” Columbia Law School and United Nations Conference on Trade and Development (New York, November 2014)
  • "Investment Treaty-Based Strategies for State and Investors: Eastern Mediterranean LNG to the EU from Israel and Cyprus," 5th Annual Mediterranean Oil & Gas Conference (Nicosia, Cyprus, May 2014)
  • "Eastern Mediterranean LNG to the EU from Israel and Cyprus: Prospects and Challenges," 5th Annual Mediterranean Oil & Gas Conference (Limassol, Cyprus, May 2014)
  • "Energy and International Investment in the Balkans," 6th Annual Central and Eastern European Forum of Young Legal, Political and Social Theorists (Zagreb, Croatia, May 2014)
  • "Transforming the Investment Treaty System through Joint Termination and Amendment," Vale Columbia Center on Sustainable International Investment, Columbia Law School (New York, October 2013)
  • "Disputes and the Regime of Islands and Rocks Under the United Nations Convention on the Law of the Sea," Panel Chair, American Branch of the International Law Association, International Law Weekend (New York, October 2013)
  • "Between Diplomacy and Adjudication: 'Energy Diplomacy' as a Peace Building Tool," International Law Association Conference - Imperium Juris: Governance, Trade, and Resources (Athens, Greece, August 2013)
  • 14th Annual United Nations Consultative Process on Oceans and the Law of the Sea, American Society of International Law Delegate (New York, June 2013)
  • "Risk Reduction in Oil & Gas Exploration: Investment Treaty-Based Strategies for States and Private Investors," 4th Annual Mediterranean Oil & Gas Conference (Athens, Greece, June 2013)
  • "Important Considerations for International Business Transactions: Dispute Resolution Under Public and Private International Law,” Fordham University School of Law (New York, March 2013)
  • "The Promotion of the Culture of Human Rights Through the Use of Civil Litigation," National Academy of Arts and Sciences, Center for Human Rights (Podgorica, Montenegro, December 2012)
  • "The Extra-Territorial Application of European Court of Human Rights Jurisprudence," University of Montenegro (Podgorica, Montenegro, December 2012)
  • "Individual Accountability for Human Rights Violations Before U.S. Courts: Introduction to the Alien Tort Statute," Center for Cultural Diplomacy (London, December 2012)
  • "Transatlantic Environmental Strategies," Centre for European Policy Studies, the European Commission Directorate-General for External Relations with the US and Canada (Brussels, September 2009)
  • "International Environmental Policy: Climate Change, Water Policy, Chemicals Regulation, and Biosafety," University of California Washington Center, Institute of Governmental Studies (Washington, D.C., April 2009)
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Bar Admissions

  • New York
  • California
  • England and Wales

Court Admissions

  • U.S. Supreme Court
  • U.S. Court of Appeals Ninth Circuit
  • U.S. Court of Appeals Eleventh Circuit
  • U.S. District Court for the Southern District of New York
  • U.S. District Court for the Northern District of California