Xavier Nyssen

Xavier Nyssen

Xavier Nyssen

Recognized since 2011

Paris, France

Practice Areas

Arbitration and Mediation

Intellectual Property Law

International Arbitration

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Xavier Nyssen is the immediate past Co-Chair of Dechert’s international dispute resolution practice. Since 1988, he has concentrated his practice in international arbitration and complex litigations, especially in the telecom, energy and pharmaceutical sectors. He has acted as counsel in numerous arbitrations whether ad hoc or under the rules of the International Chamber of Commerce (ICC), the London Court for International Arbitration (LCIA) or the European Development Fund (FED). He is also well versed in proceedings for the enforcement and the annulment of arbitration awards and occasionally acts as arbitrator. Mr. Nyssen also regularly advises foreign companies on procedures to collect evidence and to enforce foreign judgments and arbitration awards in France.

Contact & Links


  • 4 Passage Sainte Avoye
    Paris 75003


  • English
  • French

Bar Admissions

  • Belgium, Brussels
  • France, Paris
  • New York, New York


  • Litigation Committee, International Bar Association - Former Member
  • Advisory Board, Institute for Transnational Arbitration - Member
  • Belgian Center for Mediation and Arbitration (CEPANI) - Member

Recognized in The Best Lawyers in France 2023 for work in:

  • Arbitration and Mediation
  • Intellectual Property Law
  • International Arbitration

Special Focus

  • Arbitration
  • Life Sciences

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