Dr. Lena Hornkohl, LL.M.

Tenure Track Professur


      Schottenbastei 10-16 (Juridicum)

1010 Wien

Stiege 1, 5. Stock, Raum 516

T: +43-1-4277-35904

E-Mail: lena.hornkohl [AT]



Consultations are subject to prior registration via email: lena.hornkohl [AT]

Curriculum Vitae

Lena Hornkohl studied law in Heidelberg and Uppsala. After obtaining her first state exam in 2014, she completed her legal clerkship at the Higher Regional Court Karlsruhe (with stages, inter alia, at the European Commission) and completed the second state exam in 2016. After having earned a master’s degree from the College of Europe in European Law and Economic Analysis in 2019, she received a Ph.D. from the University of Heidelberg for a dissertation on the protection of confidential information in private enforcement of European Competition Law in 2020.

During her doctoral studies, she worked as a Research Assistant at the Chair for Civil Law, Corporate and Commercial Law, European Law and Comparative Law of Professor Müller-Graff at the University of Heidelberg. In 2019, she commenced her work as a lawyer in the competition law department of a major international law form in Brussels before joining the Max Planck Institute Luxembourg for International, European and Regulatory Procedural Law as a Senior Research Fellow in the Department of European and Comparative Procedural Law in 2020. She is currently pursuing her postdoctoral studies (Habilitation) at the University of Heidelberg under the supervision of Professor Burkhard Hess. In 2022, she was appointed as Tenure Track Professor for European Law at the University of Vienna. Her research interests focus on European, Economic, Private, Procedural and Comparative Law.

Current Publications

  • La protección de la información confidencial: Una visión desde la aplicación privada del Derecho de la competencia in: Gascón Inchausti/Peiteado Mariscal (Hrsg.), Estándares europeos y proceso civil. Hacia un proceso civil convergente con Europa, 2022 Atelier, p. 649 – 671, available here
  • Leave it to the experts: A comparative analysis of competition-expert lay judges in private enforcement of competition law in: YARS 15(25) 2022, S. 7 – 36 , available here The article was nominated for an Antitrust Writing Award, to vote here
  • Schadensersatz gegen Schuldnermehrheiten nach der DSG-VO in: EuZW 2022, S. 994 – 999 [mit Charlotte Wern]
  • A Guide on Civil Liability for Data Protection Violations: Non-Material Damages (and More) in: EU Law Live Weekend Edition 120, 11/2022, available here
  • Die politische Theorie von Unternehmen und situativ mittelbare Grundrechtsbindung Privater vor dem Hintergrund neuester Rechtsprechung und dem Einfluss digitaler Großunternehmen in: Croon-Gestefeld/Korch/Kuschel/Sarel /Scholz (Eds.), Das Private im Privatrecht – Jahrbuch Junge Zivilrechtswissenschaft, 2022 Nomos, S. 129 – 150

Forthcoming publications

  • Commenting on Art. 19 – 26 Foreign Subsidy Regulation (Regulation (EU) 2022/2560 of the European Parliament and of the Council of 14 December 2022 on foreign subsidies distorting the internal market, Chapter 3 – Concentrations) in Krenzler/Herrmann/Niestedt (Eds.), EU-Außenwirtschafts- und Zollrecht (C.H. Beck 2023)
  • The EU Foreign Subsidy Regulation – Why, What and How? in Hillebrand Pohl/Warchol/Papadopoulos/Wiesenthal (Eds.), Weaponizing Investments (Springer 2023), draft available here
  • Protecting the Internal Market from Subsidisation with EU State Aid Law and the Foreign Subsidies Regulation: Two Sides of the Same Coin?, draft available here
  • Die internationalzivilprozessualen Folgen der unionskartellrechtlichen Konzernhaftung (zugleich Anm. zu EuGH, Urteil vom 6.10.2021 – C-882/19 – Sumal SL gegen Mercedes Benz Trucks España SL) (IPRax 2023)

 A full list of publications can be found here.


A current list of presentations can be found here.


Information on the written European law examinations „FÜM I – europarechtlicher Teil“ here and „MP Introduction to International Law (IREWI) - European Law“ here.

As of autumn 2023, the European law part of the „MP Introduction to International Law (IREWI) - European Law“ will be held and examined in English. With regard to the examination material and the delimitation of material, the duration of 60 minutes, the type as a presence examination and the permitted aids as well as their markings, there are no changes. Specific questions please exclusively by e-mail: lena.hornkohl [AT]

Ass-Prof. Dr. Lena Hornkohl offers an exam preparation exercise "Excercise in Fundamentals of European Law for Beginners" in the respective summer semester, see on next exercise in SS 2023 here. In SS 2023, Univ.-Ass. Mag.a Julia Zöchling also offers an exam preparation exercise "Excercise in Fundamentals of European Law for Beginners", see here.


General information on the oral European law examinations can be found here. Information on the oral European Law examinations with Ass-Prof. Dr. Lena Hornkohl can be found here. Ass-Prof. Dr. Lena Hornkohl offers an exam-preparatory exercise „Übung aus Europarecht: Übung zur Vorbereitung auf die mündliche Prüfung im Europarecht für Diplom und iREWI“ in the respective winter semester.