Alexander Horn is an of counsel in the Frankfurt office of Gibson Dunn and a member of the firm’s Class Actions, Transnational Litigation, Product Liability, and International Arbitration Practice Groups.
Alex focuses on class actions and collective redress, complex commercial litigation, and cross‑border disputes, including international arbitration. He regularly represents multinational corporations in high‑stakes matters involving novel procedural and substantive issues, often at the intersection of German, European, and U.S. law.
He is a seasoned courtroom litigator who has conducted more than 400 trial and appellate hearings before courts across Germany.
Alex is recognized as a Best Lawyer in Germany for Litigation and International Arbitration by Handelsblatt / The Best Lawyers™ 2025/2026 and is recommended by The Legal 500 Deutschland 2025 and The Legal 500 EMEA 2025 for Dispute Resolution / Commercial Litigation.
His recent experience includes advising:
- A global tech company, successfully defending it in German litigation involving claims under the EU Digital Services Act and German anti-libel laws
- A U.S. company in digital content litigation in Germany
- Mercedes-Benz in climate change litigation
- Mercedes-Benz in diesel-related litigation, including a Declaratory Model Action (“Musterfeststellungsklage”)
Alex regularly publishes on collective redress, corporate litigation, and online content disputes. He is a frequent panelist for the German‑American Lawyers Association, speaking on U.S.–European cross‑border litigation and developments in U.S. constitutional law.
He studied law at the Universities of Freiburg and Grenoble and holds an LL.M. from Duke University School of Law, where he focused on U.S. civil procedure, complex litigation, and alternative dispute resolution. He has been admitted as a German lawyer (Rechtsanwalt) since 2016.
In addition to his native German, Alex speaks English and French.
Capabilities
- Class Actions
- Environmental Litigation and Mass Tort
- International Arbitration
- Litigation
- Product Liability
- Technology Litigation
- Transnational Litigation
Credentials
Education:
- Duke University - 2018 Master of Laws (LL.M.)
- University of Freiburg - 2013 Law Degree
- Université Pierre-Mendès-France - 2010 Diplôme de droit
Admissions:
- Germany - Rechtsanwalt