Barton Legum

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Bart Legum is a partner in Dentons’ Paris office, Global Co-Chair of Litigation and Dispute Resolution, and Head of the firm’s investment treaty arbitration practice. Bart has over 30 years’ experience in litigating complex cases and has argued before numerous international arbitration tribunals, the International Court of Justice and a range of trial and appeals courts in the United States. His practice focuses on international arbitration in general and arbitration under investment treaties in particular.


Joined Dentons in 2009

Debevoise & Plimpton LLP, Paris, France (2004-2008)

Chief, NAFTA Arbitration Division, United States Department of State, Washington, DC (2000-2004)

Debevoise & Plimpton LLP, New York (1987-1999)

Law Clerk for the Honorable Carolyn Dineen King, United States Court of Appeals for the Fifth Circuit, Houston, Texas (1986-1987)

Professional Memberships

New York Bar (1988) and Paris bar (2008)

Past Chair, ABA Section of International Law

Board of Arbitration Institute of Stockholm Chamber of Commerce

Panel of Conciliators (appointed by World Bank President), International Centre for Settlement of Investment Disputes

Member, Executive Committee, Institute for Transnational Arbitration

Editor, Investment Treaty Arbitration Review (6th ed. 2021)


University of Paris II, DEA in public international law (1987)

University Georgia Law School, JD magna cum laude (1985)