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Gauthier Vannieuwenhuyse

Senior Associate

Gauthier Vannieuwenhuyse
English, French, German
Practice Group

As a senior associate in our International Arbitration Group, Gauthier Vannieuwenhuyse focuses his practice on commercial and investment treaty arbitration.

He brings extensive experience of arbitration under the rules of the ICC, LCIA, ICSID and UNCITRAL, acting for companies from diverse industries as well as on behalf of States. Gauthier has particular experience in arbitration in the energy, mining, construction and pharmaceutical sectors, with a focus on emerging markets, particularly in the Middle East and Africa. He also regularly acts in arbitration-related Court proceedings including annulment proceedings before the Paris Court of Appeal.

Prior to joining Hogan Lovells, Gauthier was an associate in the international arbitration team at a major international law firm. He also publishes regularly on topical issues in international arbitration.

Representative experience

Representing a central Asian state in an UNCITRAL arbitration brought by a Canadian mining company under the Energy Charter Treaty relating to uranium mining licenses.

Representing a North African State entity in ICC arbitration proceedings and in court proceedings in relation to several of its investments.

Representing an African company in ICC arbitration proceedings in relation to the renovation of a hotel.

Representing a Guernsey company in annulment proceedings against an arbitral award before the Paris Court of Appeal.

Advising a Mexican state-related entity in relation to the freezing of its assets in a European country.

Education and admissions


  • LL.M. International Business Law, University College London, 2008
  • M.Phil, Public International Law and International Organisations, Université Paris I Panthéon-Sorbonne, 2006
  • LL.B. in French and German Law, Université Paris X Nanterre / Universität Potsdam, 2004


  • ASA below 40
  • ICDR Y&I

Bar admissions and qualifications

  • Paris
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