Paul Oberhammer is an of counsel in the Litigation/Controversy Department, and a member of the International Arbitration Practice Group. He joined the firm in 2011.


Professor Oberhammer is a leading expert in international litigation and arbitration, focusing on the laws of Germany, Austria and Switzerland. As an of counsel in WilmerHale’s International Arbitration Practice Group, Professor Oberhammer serves as an expert advisor and party representative in addition to his work as an arbitrator. He has participated as a legal expert, advisor, counsel or arbitrator in about 200 litigation and arbitration proceedings.


Professor Oberhammer was previously chairman of the Reform Commission, which drafted the Austrian Arbitration Act of 2006. In 2012, he was commissioned with the review of the European Insolvency Regulation by the EU Commission.

Recent Highlights

  • Advising leading academic publisher Springer Science+Business Media (SSBM) in securing merger control clearance from the US Department of Justice, the European Commission and several further authorities worldwide for the combination of SSBM with the majority of Holtzbrinck-owned Macmillan Science and Education (namely Nature Publishing Group, Palgrave Macmillan and the global businesses of Macmillan Education) in a joint venture with approximately EUR 1.5 billion in annual revenues.

Professional Activities

Professor Oberhammer is a distinguished academic. He is a full professor at Vienna University, Austria. From 2003 to 2011, he taught at Zurich University, where he held the chair of Swiss and International Civil Procedure, Insolvency Law, and Civil and Commercial Law. From 2001 to 2003, he held the chair of Civil Law, Civil Procedure and Commercial Law at the University Halle-Wittenberg in Germany. In 2012, he became a permanent visiting professor at St. Gallen University, Switzerland.

Professor Oberhammer has authored more than 230 publications in the fields of arbitration law, civil procedure, and civil and commercial law.


  • Das Auftragsverfahren in Bestandstreitigkeiten, Veröffentlichungen des Ludwig-Boltzmann-Institutes für Rechtsvorsorge und Urkundenwesen XII, Vienna (1992) X, 230 p.
  • Richterliche Rechtsgestaltung und rechtliches Gehör. Gedanken zur inter omnes-Wirkung von Gestaltungsurteilen und zur Rechtsstellung Drittbetroffener im Zivilprozeß, Juristische Schriftenreihe Band 72, Vienna (1994) 116 p.
  • Entwurf eines Genossenschaftsgesetzes. Mit Erläuternden Bemerkungen von Markus Dellinger und Paul Oberhammer, Veröffentlichungen des Ludwig-Boltzmann-Institutes für Rechtsvorsorge und Urkundenwesen XVII, Vienna (1996), VII, 298 p.
  • Die Offene Handelsgesellschaft im Zivilprozeß, Vienna (1998) XXV, 400 p.
  • Mitverwaltung als Nutzung. Mitverwaltungsrechte beim Nießbrauch und Fruchtgenuß an Gesellschaftsanteilen nach deutschem und österreichischem Recht, Vienna (2001), XI, 116 p.
  • Insolvenzrecht. Eine Einführung, 2nd edition, Vienna (2004), XIV, 221 p.; with Markus Dellinger.
  • Entwurf eines neuen Schiedsverfahrensrechts. Mit Erläuterungen von Paul Oberhammer, Veröffentlichungen des Ludwig-Boltzmann-Institutes für Rechtsvorsorge und Urkundenwesen XXVII, Vienna (2002), VIII, 160 p.
  • Enforcement Agency Practice in Europe, London (2005) LI, 399 p.; with Mads Andenas and Burkhard Heß.
  • Schiedsgerichtsbarkeit in Zentraleuropa – Arbitration in Central Europe, Vienna/Graz (2005) 857 p.
  • Das neue Schiedsrecht, Vienna (2006) 365 p.; with Barbara Kloiber, Walter H. Rechberger und Hartmut Haller.
  • Außerstreitverfahren, 4th edition , Vienna (2006), XIX, 119 p.; with Thomas Klicka and Tanja Domej.
  • Exekutionsrecht, 5th edition, Vienna (2009) XXIV, 280 p.; with Walter H. Rechberger.
  • Lugano Convention. Commentary, 2nd edition , Berne (2011), LI, 1243 p.; with Felix Dasser.
  • Schweizerische Zivilprozessordnung, Commentary, Basel (2010), L, 1548 p.
  • Schiedsverfahrensrecht, volume I, Vienna/New York (2012), XXX, 619 p.; with Christoph Liebscher and Walter Rechberger.
  • Commentary §§ 290–340, 342–345 Exekutionsordnung, in Angst, Kommentar zur Exekutionsordnung, 2nd edition, Vienna (2008) p. 1294–1563; 1587–1593.
  • Commentary Art 62 – 66 Obligationenrecht, in Honsell, Obligationenrecht Basel (2008) p. 311–345.
  • Commentary §§ 447–471, 1368–1374 Allgemeins Bürgerliches Gesetzbuch, in Kletečka/Schauer, ABGB-ON 1.00, Kommentar zum Allgemeines Bürgerliches Gesetzbuch, Vienna (2010), p. 811–896, 3604–3617 (print and and online version); with Tanja Domej.
  • Commentary Art. 32–58, 66–76 Brussels Regulation in Stein/Jonas, Kommentar zur Zivilprozessordnung, 22nd edition , Tübingen (2011) p. 548–750, 774–808.


  • Professor Oberhammer was featured in Who's Who Legal: Arbitration 2018, 2020–2024, a guide profiling the foremost practitioners in the arbitration community, as a leading arbitrator.
  • Named to the Lawdragon 500 Global Leading Litigators list, which recognizes lawyers who specialize in international arbitration, public international litigation and global controversies.

Insights & News


  • Education

    • JD, Vienna University, 1992

    • Master of Law, Vienna University, 1991

  • Admissions

    • Germany



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