People

Professor Dr. h.c. Claus-Dieter Ehlermann

Senior Counsel

Ehlermann, Dr. h.c. Claus-Dieter

Professor Dr. Claus-Dieter Ehlermann is one of the leading authorities on international trade, European competition and EU administrative law. He has represented governments before the WTO dispute settlement body, and he has been retained as advisor to certain governments, industry federations and undertakings involved in WTO disputes. Professor Ehlermann has been engaged to submit an expert opinion in the context of NAFTA litigation. Professor Dr. Ehlermann has also acted as an Arbitrator under Article 21.3(c) of the Dispute Settlement Understanding of the WTO.

With regard to EC law, Professor Dr. Ehlermann represents companies in EC competition law matters, most recently assisting companies in merger control procedures, State aid and international arbitration proceedings. On the regulatory side, Professor Ehlermann has advised major companies in Europe and the United States on the impact of current and pending EU legislation.

Professor Dr. Ehlermann was a member of the Appellate Body of the World Trade Organization in Geneva from December 1995 through 2001, serving as chairman during the last year of his mandate.

Prior to his service on the WTO Appellate Body, Professor Dr. Ehlermann held several senior positions with the European Commission. He was Director-General of the Directorate-General for Competition (1990-1995), Spokesman and Special Adviser for Institutional Questions of President Jacques Delors (1987-1990) and Director-General of the Legal Service of the European Commission (1977-1987).

Professor Dr. Ehlermann is considered to be one of the leading academic thinkers on EC law and has published widely. He was chair of EC Law at the European University Institute (Florence).

Related Information

Click here to view Professor Dr. Ehlermann's biography in French. For German, click here.

Honors & Awards

  • Professor Dr. Ehlermann has been listed in the 2014 edition of Expert Guides as a leading attorney in Brussels in the area of Competition/Antitrust Law
  • Professor Dr. Ehlermann is the winner of the Global Competition Review's Lifetime Achievement Award in 2011, an honor given to only 10 of the world's top antitrust lawyers 
  • Professor Dr. Ehlermann has been recognized as a leader in his field in the 2007-2009 and 2011-2015 editions of Chambers Europe, and in the 2006-2016 editions of Chambers Global: The World's Leading Lawyers.
  • Professor Dr. Ehlermann is listed in the 2006, 2007 and 2011 editions of Who's Who Legal, The International Who's Who of Business Lawyers, the 2009-2014 editions of Who's Who of Competition Lawyers and Economists, and the 2012 edition of The International Who's Who of Trade & Customs Lawyers
  • Professor Dr. Ehlermann is listed in the 2009-2014 editions of Best Lawyers in Belgium, in the areas of Competition/Antitrust Law and Trade Law - WTO
  • Professor Dr. Ehlermann has also been recognized by JUVE Handbook as a "Leading Personality in WTO legislation" in the 2009/2010 edition, and as "Leading Expert in Foreign Trade/WTO-Law" in the 2011/2012 edition
  • Professor Dr. Ehlermann is recommended in the field of customs, trade, WTO and anti-dumping by The Legal 500 EMEA 2013 

Publications & News

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March 21, 2017

WilmerHale Recognized for Outstanding International Lawyers and Practices in Chambers Global 2017

Chambers Global has named 27 WilmerHale lawyers among "The World's Leading Lawyers for Business" in its 2017 edition.

April 26, 2016

Chambers Europe 2016 Recognizes WilmerHale Lawyers and Practices

Twelve WilmerHale lawyers and five firm practices have been recognized in the 2016 edition of Chambers Europe: Leading Lawyers for Business.

March 23, 2016

Chambers Global 2016 Ranks WilmerHale Lawyers, Practices

Chambers Global has named 27 WilmerHale lawyers among “The World's Leading Lawyers for Business” in its 2016 edition. Additionally, the firm is ranked in 15 practice areas that span five regions.

March 12, 2015

WilmerHale Lawyers, Practices Recognized in 2015 Edition of Chambers Global

Thirty-one WilmerHale lawyers are named among "The World's Leading Lawyers for Business" in the 2015 edition of Chambers Global. In addition to these individual accolades, the firm is recognized in 17 practice areas that span six different regions.

March 14, 2014

Chambers & Partners Recognizes WilmerHale in its 2014 Global Edition

Twenty-nine WilmerHale lawyers have been named among the “World's Leading Lawyers for Business” in the 2014 edition of Chambers Global. In addition to these individual accolades, 13 of the firm's practice areas were also recognized.

May 21, 2013

WilmerHale Antitrust Attorneys Listed in International Who’s Who of Competition Lawyers and Economists 2013

Eleven WilmerHale antitrust attorneys were recently named to the International Who’s Who of Competition Lawyers and Economists 2013 listing.

May 20, 2013

Legal 500 EMEA 2013 Recognizes WilmerHale Attorneys, Practices

The 2013 edition of The Legal 500 Europe, Middle East and Africa has been released, and includes recognition for 10 WilmerHale practice areas and 13 individual lawyers.

May 20, 2013

WilmerHale Lawyers, Practices Recognized by Chambers Europe 2013

In the 2013 edition of Chambers Europe: Leading Lawyers for Business, 20 WilmerHale lawyers and seven firm practices have been recognized as leading in their field.

May 11, 2012

Chambers Europe 2012 Recognizes WilmerHale Lawyers and Practices

April 10, 2012

WilmerHale Recognized as a Leading Firm in Europe by Legal 500 EMEA

Professional Activities

Professor Dr. Ehlermann is a member of advisory boards of academic institutions and law reviews. He has published over 200 articles on European and international trade law and was co-editor of one of the foremost commentaries on the EC Treaty.