Mary Deligianni


Full Biography

Mary is head of our data protection & cybersecurity practice.

Mary has extensive experience in advising on issues relating to data protection, cybersecurity and new technologies. She leads data privacy compliance programs, advises on the handling of data breach incidents, conducts risk assessment exercises, and designs and implements data transfers outside the EU. She also drafts and negotiates complex data processing and outsourcing agreements, conducts privacy and security due diligence in connection with share and asset deals and delivers trainings to managers and employees on data protection compliance and data security.

She regularly advises international and domestic clients on employment data protection issues, such as internal investigations, whistleblowing schemes and surveillance techniques, as well as on marketing campaigns and the operation of e-shops and smart apps. Her advice pertains to novel and complex issues on cloud-computing, connected devices and biometric databases, while she often interacts on issues of regulatory practice with the Hellenic Data Protection Authority.

Mary is admitted before the Court of Appeals.

She joined our firm in 2003 and was admitted to the Piraeus Bar in 2004.


  • University of London, University College London (LL.M. in Intellectual Property Law with Merit, 2003)
  • University of Thrace, Faculty of Law (LL.B., Valedictorian, 2002)


  • Greek
  • English


Legal500 Deligianni 2020


Legal500 Deligianni 2020