Olivier Marquais is an Attorney-at-law in the Litigation and Risk Management Practice Group of Loyens & Loeff, sharing his time between Luxembourg and Singapore. Olivier specialises in commercial law, contract drafting and negotiation, dispute resolution and blockchain based smart contracts. He has experience in advising on a broad range of complex, high-value multi-jurisdictional litigations and arbitrations, in particular related to large infrastructure and construction projects.

Prior to joining Loyens & Loeff in 2018, Olivier was the Legal Officer and Representative of the World Intellectual Property Organization Arbitration and Mediation Center in Singapore, responsible for the management of cross-border IP and technology related disputes.

Olivier was admitted to the bars of Luxembourg, New York, Ontario, Paris and Quebec.

Langues parlées

  • Anglais
  • Français
  • Espagnol


Expériences professionnelles

  • Loyens & Loeff Luxembourg

    Loyens & Loeff Luxembourg SARL

    • Attorney at Law : Commercial, Litigation and Risk Management
    • septembre 2018 à aujourd'hui
  • WIPO (World Intellectual Property Organisation)

    • Legal Officer and Representative of the WIPO Arbitration and Mediation Center in Singapore
    • juillet 2016 à août 2018
  • Aceris Law

    • International Arbitration Associate
    • mars 2015 à juillet 2016
  • Cabinet Paul-A. Gélinas

    • International Arbitration Associate
    • janvier 2014 à octobre 2014


  • International Law
  • Legal Research
  • Legal Writing
  • Corporate Law
  • Commercial Litigation
  • Copyright Law
  • Litigation
  • Intellectual Property
  • Patent Law
  • Public Speaking
  • International Arbitration
  • Civil Law
  • Common Law
  • Trademark

Formations et distinctions

University of Ottawa

  • Juris Doctor : National Program, Common Law
  • 2011 - 2012

University of Ottawa

  • Bachelor, in Civil law ; Licence, in Civil law ; LL.L.
  • 2008 - 2011

University of Kent, Canterbury

  • LL.M., Public International Law with distinction ; International Human Rights and Humanitarian Law
  • 2007 - 2008