Biography
Mr. Niall Meagher has been the Executive Director of the ACWL since July 2012. In this capacity, he manages the day-to-day operations of the ACWL and represents the ACWL externally. Mr. Meagher also serves ex officio on the ACWL’s Management Board.
Before becoming Executive Director, Mr. Meagher had been Senior Counsel at the ACWL since September 2004. In this capacity, he assisted ACWL Members and LDCs in WTO dispute settlement proceedings before WTO panels, the Appellate Body, and arbitrators, and prepared numerous legal opinions on issues of WTO law. He also participated in the ACWL’s training activities and is a frequent writer and speaker on issues of trade law.
Prior to joining the ACWL, Mr. Meagher was a partner in the international trade and dispute resolution practice of the law firms of Sidley Austin LLP, and, previously, Powell Goldstein LLP, in Washington, DC. He represented both governments and interested private parties in WTO dispute settlement proceedings, international investment disputes, and in domestic customs and trade remedy proceedings before national regulatory authorities. He regularly argued trade and customs law cases before the US Court of International Trade and the US Court of Appeals. Mr. Meagher also gained extensive experience in all aspects of domestic anti-dumping, countervailing duty and safeguards proceedings.
Mr. Meagher was born in Dublin, Ireland, in 1965. He holds a Bachelor of Laws (LL.B.) from Trinity College, Dublin, and a Master of Laws (LL.M.) from the Law School of the University of Chicago. He speaks English, French, and Spanish (Dele C1).
Publications
Mr. Meagher is the co-author of Dispute Settlement in the WTO: Practice and Procedure (3rd Ed.) (Cambridge University Press, 2022) (with David Palmeter and Petros C. Mavroidis).

His other recent publications include:
- From the Alabama to Airbus – 150 Years of International Arbitration in Geneva, in RECKONING AND RENEWAL: THE WORLD TRADE ORGANIZATION AND ITS DISPUTE SETTLEMENT SYSTEM AT 30: ESSAYS IN HONOUR OF VALERIE HUGHES, Nicolas Lamp, ed. (University of Toronto Press, 2025), pp. 431-449.
- Challenges and solutions for developing countries and least-developed countries in the WTO dispute settlement mechanism: The past, present, and future, in RESEARCH HANDBOOK ON TRADE LAW AND DEVELOPMENT, Sonia Rolland, ed. (Elgar Publishing, 2025), pp. 86-100 (with Vitaliy Pogoretskyy).
- Advisory Centre on WTO Law (ACWL), Max Planck Encyclopedia of Public International Law (MPEPIL) (Oxford University Press, 2025) (with Leah Buencamino).
- Dr. Frieder Roessler’s Approach to the Constitutional Function of the GATT/WTO, Global Trade and Customs Journal, Vol. 20, Issue 4 (2025), pp. 272-277.
- The ACWL: Enhancing the Accessibility of the WTO Legal System, Global Trade and Customs Journal, Volume 19, Issue 2 (2024), pp. 93-98 (with Leah Buencamino).
- Book review: “Revitalizing the World Trading System”, by Alan W. Wolff (Cambridge University Press, 2023), in World Trade Review (2024) 23:4, pp. 545-548.
- The Advisory Centre on WTO Law (ACWL): 20 Years of Assistance to Developing and Least-Developed Countries, International Trade Law & Regulation, Issue 4 (2023), pp. 167-180 (with Leah Buencamino).
- Le Centre Consultatif sur la Législation de l’OMC (ACWL) : 20 Ans au Service des Pays en Développement et des Pays les Moins Avancés / The Advisory Centre on WTO Law (ACWL): 20 Years of Assistance to Developing and Least-Developed Countries, in Revue de Droit des Affaires Internationales / International Business Law Journal, No. 6 (2021), pp. 745-762 (with Leah Buencamino).
- Delivering International Legal Aid in the Twenty-First Century: Twenty Years of Experience at the ACWL, Global Trade and Customs Journal, Vol. 16, Issue 10 (2021), pp. 507-509 (with Frieder Roessler).
- El Centro de Asesoría Legal en Asuntos de la OMC (ACWL): 20 años al Servicio de los Países en Desarrollo y de los Menos Adelantados, Latin American Journal of Trade Policy, n°10 (2021), pp. 100-114 (with Leah Buencamino and Fernando Pierola).
- Legal Remedies and Effective Compliance, in PRACTICAL ASPECTS OF WTO LITIGATION, Marco Tulio Molina Tejeda, ed., (Wolters Kluwer, 2020), pp. 197-209.
- The Judicial Style of the Appellate Body, in THE APPELLATE BODY OF THE WTO AND ITS REFORM, Chang-fa Lo, Junji Nakagawa, and Tsai-fang Chen, eds. (Springer, 2020), pp. 141-166.
- Book Review: “Clashing over Commerce – A History of US Trade Policy”, by Douglas A. Irwin (University of Chicago Press, 2017) in World Trade Review (2019), 18:1, pp. 164 – 167.
- The Rule of Law and the WTO, Journal of International Trade and Arbitration Law (2018), pp. 25-54.
- Ask for the Moon, Settle for the Stars: What is a Reasonable Period to Comply with WTO Awards?, World Trade Review (2017) 16:2, pp. 395-425. (with Petros C. Mavroidis, Thomas J. Prusa, and Tatiana Yanguas).
- Regulatory convergence and dispute settlement in the WTO, Journal of International Trade Law and Policy (2015), Vol. 14 Issue: 3, pp. 157-162.
- Representing developing countries before the WTO: the role of the Advisory Centre on WTO Law (ACWL), EUI RSCAS Policy Paper 2015/02 (2015), available at http://cadmus.eui.eu/handle/1814/35747
- Book review: “A Global History of Trade and Conflict since 1500”, Lucia Coppolaro and Francine McKenzie, eds. (Palmgrave MacMillan, 2013), in World Trade Review (2015), 14:02, pp. 387-390.
- Book review: “The World Trade Organization and International Trade Law: Antidumping, Subsidies and Trade Agreements” (World Scientific Publishing Co., 2015), by Gary N. Horlick, in World Trade Review (2014), 13:03, pp.586-589.
- China – Electronic Payment Services: Discrimination, Economic Development and the GATS, World Trade Review (2014) 13:02, pp. 409-442 (with Bernard M. Hoekman).
- Book review: “Developing Countries in the GATT Legal System”, by Robert E. Hudec, with a new introduction by J. Michael Finger (Cambridge University Press, 2011), in World Trade Review (2012) 11:1, pp. 155-165.
- Fostering Developing Country Engagement in the WTO Dispute Settlement System: Outstanding Challenges and Governance Implications, in Carolyn Deere-Birkbeck, ed., MAKING GLOBAL TRADE GOVERNANCE WORK FOR DEVELOPMENT: PERSPECTIVES AND PRIORITIES FROM DEVELOPING COUNTRIES (Cambridge University Press, 2011), pp. 328-351.
- Book review: “Peddling Protectionism: Smoot-Hawley and the Great Depression”, by Douglas A. Irwin (Princeton University Press, 2011), in Journal of International Economic Law 14(2) (2011), pp. 507-511.
- “Mexico – Olive Oil: Remedy without a cause?”, World Trade Review (2010) 9:1, pp. 85-116 (with Chad Bown).
- Book review: “The Economic Structure of International Law”, by Joel P. Trachtman (Harvard University Press, 2009), in World Trade Review (2009), 8:3, pp. 468-471.
- Comment: Turkey – Measures Affecting the Importation of Rice, World Trade Review (2009), 8:1, 179-186.
- World Trade Organization Dispute Settlement, in THE PRINCETON ENCYCLOPEDIA OF THE WORLD ECONOMY, Vol. II, 1196-1202 (Princeton University Press, 2009) (with David Palmeter).
- Comment: European Communities – Customs Classification of Frozen Boneless Chicken Cuts, World Trade Review (2008), 7:1, 39-43.
- So far, so good: but what next? The Sutherland Report and WTO Dispute Settlement, World Trade Review (2005), 4:3, pp. 409-417.
Emails for Mr. Meagher should be addressed to secretariat@acwl.ch
