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Antonio Marzagão Barbuto Neto

Antonio Marzagão Barbuto Neto

Practice Groups

Litigation, Arbitration , Cybersecurity & Data Privacy, Insurance and Reinsurance


Office: São Paulo
Phone: (55 11) 5086-5245


Professional experience

Partner in the Arbitration and Litigation practice groups.  In addition to litigating cases before Brazilian courts, Tony also represents clients in complex arbitration matters before domestic and international arbitration institutions and assists Brazilian clients with New York-related disputes. He served as a foreign associate in the New York office of Debevoise & Plimpton and is licensed to practice law in the courts of that state.  Tony also represents clients in advertising cases brought before the Brazilian Advertising Self-Regulating Body (CONAR). Graduate of Universidade de São Paulo, Tony holds an LL.M. in General Studies from New York University, USA and a specialized degree in Business Management from Business School São Paulo.  He is the co-author of the book Brazilian Arbitration: The Booming Years.


Antonio is recognized for his arbitration and litigation skills in Chambers Global, Chambers Latin America, Latin Lawyer 250, The Legal 500, Who’s Who Legal, GAR 100 and Euromoney Expert Guides – Rising Stars (Commercial Arbitration).


  • English


  • Specialized degree in Business Management from Business School São Paulo, 2007.
  • LL.M. in General Studies from New York University (NYU) Law School, USA, 2005.
  • Graduate of the Law School of Universidade de São Paulo (USP), 2001.

Additional activities:

  • Admitted to the New York State Bar Association.
  • Member of the New York State Bar Association (NYSBA).
  • Member of the Mediation and Arbitration Committee of the Brazilian Bar Association - São Paulo section (OAB-SP).
  • Member of the International Center for Dispute Resolution.


  • Co-author of the chapter "A Prática, a Construção e a Solidificação da Arbitragem", of the book 40 Anos de Direito Empresarial no Brasil. São Paulo: Quartier Latin, 2016, p. 65-79.
  • Co-author of Practical Law - Digital Business in Brazil: Overview. London: Thomson Reuters, 2015.
  • Co-author of Brazil chapter from the book Corporate Internal Investigations. London: Oxford University Press, 2013.
  • Co-author of Arbitration chapter from the publication Latin Lawyer Reference. London: Law Business Research, 2012, 2013, 2014 and 2015 editions.
  • Co-author of Brazil chapter from the book International Civil Procedure Handbook. London: Kluwer Law International, 2004.
  • Antonio has published several articles in national and international publications, such as International Law Office, Latin Lawyer, World Law Group (WLG), Dispute Resolution Journal and Brasil Econômico.

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