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Patrícia Helena Marta Martins

Patrícia Helena Marta Martins

Practice Groups

Litigation, Consumer Affairs, Automotive, Life Sciences & Healthcare, Cybersecurity & Data Privacy, Technology & Innovation , Digital Election Law, Gaming & E-sports


Office: São Paulo
Phone: (55 11) 5086-5439


Professional experience

Partner in TozziniFreire’s Technology & Innovation and Cybersecurity & Data Privacy practice groups, Patrícia also has wide experience in Litigation and Consumer Affairs, assisting clients in litigation issues related to these areas, including preventing liability, discussion on intermediary liabilities, and class actions defense. She is highly skilled in coordinating leading cases in higher courts, as well as in civil litigation matters regarding data protection and interaction with administrative authorities. She specializes in Digital Law, encompassing cases involving digital electoral law, structuring and managing activities to monitor the position of Brazilian authorities regarding Fake News, beyond contributing suggestions to the Superior Electoral Court on the electoral regulation concerning electoral advertising on the Internet.


Recommended by Chambers Brazil, The Legal 500 and Análise Advocacia 500, relevant legal guides. Patricia is also recognized in the international guide Women in Data Survey 2019, published by Global Data Review. In 2020, she was highlighted as Leading Individual in the first edition of GDR 100 and was recently mentioned by Leaders League as one of the leaders in Technology, Data Protection and Startups & Innovation practices.


  • English


  • Specialized degree in Business Management from Business School São Paulo, 2007.
  • Postgraduate degree in Consumer Law from PUC-SP (Pontifícia Universidade Católica de São Paulo), 2001.
  • Graduate of the Law School of PUC-SP, 1998.

Additional activities:

  • Member of the Consumer Committee of IBRAC (Brazilian Institute of Studies on Competition, Consumer Affairs and International Trade).
  • Member of the Competition and Consumer Relations Committee of CESA (Association of Brazilian Law Firms).
  • Member of the Digital Law Committee of CESA.


  • "The New Actor on Consumer Relations: Online Intermediation Platforms" chapter (co-author). In 30 Years of the Consumer Defense Code: The Development of Consumer Affairs. São Paulo: IBRAC/Editora Singular, 2020.
  • "A Internet Deu Voz às Pessoas. Mas como o Direito Regula a Liberdade de Expressão Online? Uma Análise da Regulação Brasileira" article (co-author). In Direito Exponencial: O Papel das Novas Tecnologias no Jurídico do Futuro. São Paulo: Editora Revista dos Tribunais, 2020.
  • "Processing Publicly Accessible Personal Data" article (co-author). In Comments on the Brazilian General Data Protection Law in View of the Consumer Defense Code. São Paulo: IBRAC/Singular, 2019.
  • Practical Law - Digital Business in Brazil: Overview (co-author). London: Thomson Reuters, 2018.  
  • "Formação das Relações de Consumo. Conceito de Fornecedor e Consumidor" chapter (co-author). In IBRAC 25 anos - Panorama Legal sobre as Relações de Consumo no Brasil. São Paulo: Singular, 2017.
  • "Como a Tecnologia Mudou - e Continua a Mudar - o Direito e o Judiciário" chapter. In 40 Anos de Direito Empresarial no Brasil. São Paulo: Quartier Latin, 2016, p. 147-167.
  • "Brazil" chapter. In The International Comparative Legal Guide to: Class and Group Actions 2013. London: Global Legal Group, 2013.
  • Several articles in important publications, such as JOTA and Propmark.

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