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Katja-Maria Harsdorf


Katja-Maria Harsdorf advises and represents clients in national and international proceedings before civil courts, especially in injunction proceedings. She focuses on litigation in fair trading law, press law, gambling law, as well data privacy litigation and commercial litigation. 

Katja-Maria Harsdorf also advises clients including publishers, e-commerce companies and insurance companies in all areas of IP and media law.

Professional QualificationsRechtsanwältin admitted with Hanseatische Rechtsanwaltskammer Hamburg


  • Representing a publisher against a competitor in injunction proceedings and main action proceedings on the admissibility of advertising claims.
  • Representing a leading German media and technology company in press law disputes.
  • Representing an international gambling provider in the defence of repayment claims.
  • Representing a platform operator in the defence of numerous claims for injunctive relief, damages and information based on data protection law.
  • Advising an international insurance company on the realignment of its direct marketing strategy.
  • German
  • English
  • Hanseatisches Oberlandesgericht, Second State Examination, 2020
  • Humboldt-Universität zu Berlin, First State Examination, 2017


Prior Experience

Before joining DLA Piper as an associate, Katja-Maria Harsdorf gained experience during her traineeship in trademark law in a renowned international commercial law firm in Hamburg and in copyright law in a copyright chamber at the Hamburg Regional Court. She also worked at the Federal Cartel Office in Bonn and at the Permanent Mission of the Federal Republic of Germany to the United Nations in New York.

Memberships And Affiliations

  • Deutsche Vereinigung für gewerblichen Rechtsschutz und Urheberrecht (GRUR)
  • Deutscher Juristinnenbund (djb)