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Vita
Dr Dennis Jennessen studied law at the University of Cologne, specialising in media and communications law. He subsequently completed his doctoral thesis at the Rheinische Friedrich-Wilhelms-Universität Bonn under the supervision of Prof. Dr Louisa Specht-Riemenschneider. Whilst working on his doctoral thesis, he served as a research assistant in the ‘Technology, Media & Entertainment, Telecoms’ practice group at the international commercial law firm Osborne Clarke, based in Cologne and Berlin.

He completed his legal training at the Berlin Court of Appeal, with placements including the Federal Government Commissioner for Culture and the Media, as well as at the law firms Raue Rechtsanwälte and Schertz Bergmann Rechtsanwälte, which specialise in press and freedom of expression law. Dr Dennis Jennessen has been admitted to the bar since June 2023. He began his legal career at Irle Moser Rechtsanwälte, specialising in press and freedom of expression law as well as media law.

He joined the litigation team at HÄRTING Rechtsanwälte in February 2026. Dr Dennis Jennessen advises clients on all aspects of press and freedom of expression law, communications and media law – including social media and influencer marketing – as well as film and music law and competition law.

In June 2026, Dr Dennis Jennessen was included in the 2027 edition of ‘Best Lawyers: Ones to Watch in Germany’. This accolade, based on a survey of colleagues, recognises him as a ‘lawyer of the future’ in the field of media law.

Lectures & Seminars
  • Statements by influencers at the intersection of the privilege of laypeople and journalistic duties of care, 1st Young Scholars’ Conference on Press and Personality Rights, University of Potsdam, 17 October 2025
  • Workshop on freedom of expression, media law and copyright law, Social Media Academy #3: Democracy’s Digital Catch-up, Heinrich Böll Foundation, Berlin, 9 May 2026
  • Crises, Clicks & Communication: Responding to hate comments, press enquiries and online backlashes in a legally compliant manner, Social Media Management Conference, Berlin, 25 August 2026
Publications (Selection)
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