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Judith Gill QC

Judith is recognised as one of the leading practitioners in the field of international arbitration. She has conducted cases under numerous sets of rules and subject to many different systems of law. In particular she has experience of arbitrations under the rules of, amongst others, the London Court of International Arbitration (LCIA), International Chamber of Commerce (ICC), Singapore International Arbitration Centre (SIAC), International Centre for the Settlement of Investment Disputes (ICSID), Hong Kong International Arbitration Centre (HKIAC), Dubai International Arbitration Centre (DIAC), American Arbitration Association (AAA) and United Nations Commission on International Trade Law (UNCITRAL) with seats including Singapore, Hong Kong, Paris, London, New York, Washington, Dubai, Geneva, and Seoul. She has particular experience of projects (especially in the energy and infrastructure sectors), joint ventures, distributorships, investor protection disputes, insurance claims and construction disputes.

She was a partner in the International Arbitration Group of the global law firm Allen & Overy for more than 25 years and was Head of the Group for 11 years. During that time she regularly acted as lead advocate and strategic adviser to clients involved in substantial international arbitration cases in both the commercial and investment treaty fields.

Since joining Chambers Judith has practised exclusively as an arbitrator. She has extensive experience, both sole and as a member of a panel of three arbitrators, in matters involving construction disputes, energy contracts, manufacturing, distributorship agreements and other commercial agreements. In particular, Judith is regularly selected by institutions, including the ICC and SIAC, for appointments as arbitrator.

Judith is currently the President of the LCIA, the first female to be appointed to the position. She was only the second female solicitor-advocate to be appointed QC and the first with an international arbitration practice. 

Market recognition

Judith has been recognised as a top practitioner in international arbitration for many years. She was ranked Band 1 by Chambers Global 2017 for Global-wide, Arbitration (International) and Singapore, Dispute Resolution: Arbitration - the only person to receive a Band 1 ranking in both categories. Chambers Global 2017 notes that 'She is considered to be "a leading expert in arbitration" who is "calm under all circumstances." and a "Top-notch operator" [who] is regarded by market sources as being a "spectacular counsel" who is "right at the top of the tree" for international arbitration.'

In Chambers 2016, she was ranked in Band 1 and ‘one source hailed her as being "a superb, top-flight lawyer."'

In a vote by peers, Who's Who Legal 2016 recognised Judith as the 'most influential figure in international arbitration'.

Chambers 2015 ranks Judith Band 1 for International Arbitration Global-, Europe- and UK-wide, and notes that she is "'highlighted for her depth of experience and excellent advocacy on complex matters', where she 'works on a broad range of PIL cases, including Energy Charter Treaty (ECT) issues and investment treaty arbitrations, and is considered to be a practitioner of 'very high stature'" (London, Public International Law).

Chambers 2014 rates Judith as a 'Star Individual' who is held in “incredible esteem” (London - International Arbitration), stating that she is "a great speaker, an amazing cross-examiner, a strategic thinker and has an amazing memory." (Europe-wide, International Arbitration).

In July 2011, Judith won the award for 'Best in Commercial Arbitration' at Euromoney's Women in Business Law Awards. In 2013 she was recognised as one of London's 'Super Lawyers': "Unparalleled ability to make complex legal, contractual and technological concepts readily comprehensible without sacrificing fundamental truths."


Representative experience as arbitrator

Member of Tribunal in an LCIA arbitration concerning an oil and gas exploration and development joint venture in a major field in Russia.

Member of Tribunal in an ICC arbitration concerning disputes under a construction contract between Middle East parties.

Tribunal Chair in an ICC arbitration between a BVI company and Canadian interests concerning an alleged agreement for the exploitation of mineral rights.

Party nominated arbitrator in an LCIA arbitration between Egyptian parties involved in a contractual dispute concerning seismic exploration.

Tribunal Chair in an LCIA arbitration between Polish companies concerning the proposed development of wind turbine operations.

Party nominated arbitrator in two separate ad hoc arbitrations between an African mining company and its insurers concerning business interruption loss claims.

Sole arbitrator in an LCIA arbitration between two Saudi Arabian companies concerning claims for liquidated damages for late delivery of products.

Member of Tribunal in two related AAA/ICDR arbitrations concerning the development and production of aircraft technology.

Tribunal Chair in an ICC arbitration seated in Singapore concerning dispute under a Share Purchase Agreement in relation to manufacturing facilities in Korea.

Education and Career: 

Career history

Partner, Allen & Overy, Singapore, 2015-April 2018

Partner, Allen & Overy LLP, London, 1992-2015

Assistant Solicitor, Allen & Overy LLP, London, 1985-1992

Legal qualifications

Admitted as solicitor, England and Wales, 1985

Higher Rights of Advocacy (Civil), 1998

Registered Foreign Lawyer, Singapore, 2015-18

Academic qualifications

BA, Jurisprudence, Worcester College, University of Oxford, 1983

MA, Jurisprudence, University of Oxford, 1986

Diploma in Arbitration, University of London, 1990


Co-Author: "Russell on Arbitration", 21st, 22nd, 23rd and 24th Editions, (1997 – 2015)

Co-Author: "The Public Policy Exception Under Article V.2(b) of the New York Convention: Lessons from Around the World", Asian Dispute Review, April 2016

The Development of Legal Argument in Arbitration: “Law as an Afterthought – Is It Time To Recalibrate Our Approach?” in David D. Caron, et al. Practising Virtue: Inside International Arbitration. New York: Oxford University Press, 2015

Co-Author: "The Principle of Contributory Fault after Yukos", published in Dispute Resolution International Vol 9 No 2 October, 2015

Contributing auditor, 2015 to "International Financial Disputes" by Golden and Lamm

Co-Author, 2015: "Investment Treaty Tribunals' Divergent Approaches to Costs: Reflections Following Decisions in Two Cases Commenced Against the Republic of Turkey", published in The Turkish Commercial Law Review

Author, 2012: "Transparency: is it really needed and to what extent?", published in Players’ Interaction in International Arbitration

Co-Author, 2011: "The 2010 Revisions to the IBA Rules on the Taking of Evidence in International Arbitration", published in The Paris Journal of International Arbitration

Spring 2010: "Is There a Special Role for Precedent in Investment Arbitration?", ICSID Review, Volume 25, Number 1

Author, 2009: "Applications for the Early Disposition of Claims", published in ICCA Congress Series No. 14, Kluwer International

Contributing author, 2008: Chapter on English Law in State Entities in International Arbitration, edited by Emmanuel Gaillard, Juris Publishing

Appointments and Society Memberships: 

President, London Court of International Arbitration

Fellow, Chartered Institute of Arbitrators

Fellow, Institute of Advanced Legal Studies

Member, IBA Arbitration Committee Advisory Board

Member of the SIDRC International Advisory Board

Former Member, ICC UK Arbitration Group

Former Member, Board of Directors, AAA

Former Co-Chair, Arbitration Committee of the International Bar Association Legal Practice Division

Former Chair, The International Arbitration Club

Former Member, Board of Directors, SIAC

Former Trustee, British Institute of International and Comparative Law

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