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Fabienne Haas

Partner, Member of the Paris Bar 

Fabienne Haas is a partner at August Debouzy. For 25 years, she has provided operational advice to international clients, specializing in employment and labor legislations.

Co-leading the foreign desk, Fabienne looks after international conglomerates, listed companies, and French market leaders, supported by the ten international lawyers in our social and labor law practice. As co-chair of our International Committee, Fabienne manages the relationship with our top-tier global partner network.   

Fabienne worked for Shearman & Sterling in New York, on international arbitration and litigation. before moving to their Paris office in 1988, and subsequently joining Sullivan & Cromwell’s French operations. She joined August Debouzy in 1998. 

Practice Area

  • Employment and Social Security Law


Education

  • LL.M., New York University School of Law, 1986
  • Post-graduate degree (DEA) in Corporate Law and Economics, University of Paris I-Sorbonne, 1983
  • Master’s degree (Maîtrise) in Public Law, University of Paris II- Assas, 1982
  • Master’s degree (Maîtrise) in Private Law, “Legal Careers”, University of Paris II- Assas, 1982
 

Admitted to the bar

  • Paris, 1985


Languages

French I English


Membership

  • Member of the Club L Femmes-Forum
CHAMBERS AND PARTNERS FRANCE 2025
Employment: Band 4


BEST LAWYERS 2025
(Recognized in Best Lawyers since 2013)
Employee Benefits Law, Labor and Employment Law

WHO'S WHO LEGAL 2023
France – Labour & Employment : Thought Leader
Labour, Employment & Benefice : Recommended

DÉCIDEURS STRATÉGIE FINANCE DROIT 2024
LABOR AND EMPLOYMENT
Social compliance: highly recommended 
High-
risk individual litigation: leading 
Social management of M&As and social audits
: leading 
Collective bargaining and social relations
: leading
Reorganizations, socials programs, and related litigation: leading 
  • AD Article

    August Debouzy awarded Law Firm of the Year – France

    August Debouzy was honored with the Law Firm of the Year – France award at The Lawyer European Awards, held in London this past Thursday. Partners Marie Danis (Dispute Resolution), and Laurent Cotret (Restructuring), represented the firm at this highly regarded ceremony.

  • AD Article

    Dismissal for Gross Misconduct in France: What Happens if the Date of the Misconduct is Missing?

    The process of dismissing an employee for gross misconduct in France is highly regulated, requiring employers to follow specific procedures to avoid legal challenges. Among these, sending a detailed letter of dismissal is a critical step. This letter must clearly outline the reasons for dismissal, as any additional reasons or facts discovered later are inadmissible before the French labor courts. Since September 2017, the Macron Statute has allowed employers to provide more detailed information regarding the dismissal within 15 days of notification.

  • AD Deal

    August Debouzy advised Cornerstone OnDemand Inc., in its acquisition of Clustree, an AI-Powered Skills Platform for People Development

    August Debouzy advised the US global leader in people development solutions Cornerstone OnDemand Inc. (NASDAQ: CSOD), in view of its acquisition of Clustree, a French technology company that developed an industry-leading, AI-powered skills engine and extensive skills ontology that is being used by leading global brands, including Carrefour and SNCF.

  • AD Deal

    August Debouzy accompagne Footprint dans le cadre de son rapprochement avec Vae Solis

    August Debouzy a conseillé Footprint, société de conseil en communication stratégique fondée par Philippe Manière, dans le cadre de son rapprochement avec Vae Solis Corporate, elle-même fondée par Arnaud Dupui-Castérès, afin de constituer un des trois acteurs indépendants les plus importants du secteur, fort de 45 consultants dont 8 associés. August Debouzy a conseillé Footprint, avec une équipe composée de Valery Denoix de Saint Marc, Associé, Julien Wlodarczyk, Counsel, et François Richard, Avocat, sur les aspects corporate, Fabienne Haas, Associée, et Clément Jotreau, Avocat, sur les aspects de droit social, Boris Léone Robin, Avocat, en protection sociale et épargne salariale, et Philippe Lorrentz, Associé, et Elie Betard, Avocat, sur la partie fiscale.

  • AD Life

    August Debouzy BEST LAWYERS - 2020 Edition

    August Debouzy's lawyers have ranked in Best Lawyers since 2010. Their skills have been rewardd yet again this year. Find out about our 32 Best Lawyers !

  • AD Life

    August Debouzy BEST LAWYERS - 2019 Edition

    August Debouzy’s lawyers have ranked in Best lawyers since 2010. Their skills have been rewarded yet again this year. Find out about our 23 Best Lawyers!

  • AD Life

    August Debouzy: Law Firm of the Year in France By “Le Monde du droit”

    AUGUST DEBOUZY received 7 awards during the 5th edition of the “Palmarès des avocats” organized by “Le Monde du droit” (March 23, 2017). This recognitio

  • AD Life

    Palmarès des avocats 2017 : August Debouzy, cabinet d’avocats de l’année !

    Lors de la 5e édition du Palmarès des avocats organisée par le Monde du droit en partenariat avec l’AFJE

  • AD Deal

    21 partners are ranked in the 2015 Edition of Best Lawyers in France

    The Sixth Edition of the “Best Lawyers® in France” ranking published by the eponymous American legal guide can be found in the June 1, 2015 issue of Les Ec

  • AD Life

    21 associés d’August & Debouzy sont distingués par Best Lawyers in France

    ​La sixième édition du palmarès des avocats « Best Lawyers® in France » issue de la revue juridique américaine éponyme est parue dans les Echos du 1 juin 2015.

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