Law School

Commercial Law

Contact Details

Visiting address: Akadimias 47, 1st Floor, 10672 Athens, Greece                   

Tel.:+30210 3626855 | Email:dtzougan[at]otenet[dot]gr                  


Professor Tzouganatos is a graduate of the National and Kapodistrian University of Athens, Law School (LL.B., 1976). He holds a doctoral degree from the University of Tübingen/Germany (Dr. iur., 1982) and a Master of Laws degree from the University of Michigan (LL.M., 1985).   

Scholarships-Fellowships: Friedrich-Naumann-Stiftung, 1979-1982, William F. Cooke Fellowship, 1984-1985(University of Michigan).

Between June 1995 and March 1999 he was Member and between October 2000 and October 2003 Chairman of the Hellenic Competition Commission (National Competition Authority). From October 2003 to July 2004 he served as Chief Legal Counsel and from July 2004 until June 2006 as General Director of Regulatory Affairs of the Hellenic Telecommunications Organization (OTE) Group. From July 2006 to January 2008 he held the position of Chief Legal Counsel of EFG Eurobank. He is currently Member of the Legal Council of the Bank of Greece (Central Bank).

Prof. Tzouganatos has served as member or Chairman of several Arbitral Tribunals (in ICC-, DIS-, VIAC- as well as in domestic Arbitrations). He has also appeared as an Expert Witness in International Arbitrations.

He teaches or has taught Competition Law, Industrial Property, Law of Negotiable Instruments and Business Law.

He has published books and articles on Competition Law, Unfair Trade Practices, Trademarks, Corporate and Consumer Protection Law in Greek English and German.


a) Books

Zur Rezeption fremden Rechtsguts im Bereich des Wirtschaftsrechts, 1983/ Undercapitalization of Capital Companies, 1994/ Exclusive and Selective Distribution Agreements in Competition law and Unfair Trade Practices, 2001/ Oligopoly and Collective Dominance in Competition Law, 2004 / with Hopt, Klaus J. (editors), Europäisierung des Handels- und Wirtschaftsrechts, 2006 and Das Europäische Wirtschaftsrecht vor neuen Herausforderungen, 2014 / Law of Free Competition (editor), 2013/ 2nd edition, 2020 / Greek Competition Law (editor), Kluwer 2015.

b) Articles and contributions in commentaries

Orientation problems of the antitrust policy, Nomikon Vima (NoV) 1983/ Problems of a legal control of the multinational enterprises, 1985 / Private international law as a means to control the multinational enterprise, 1986 / Codes of Conduct for multinational enterprises, 1986 / Free establishment of legal persons (artt. 52, 58 EEC) and International Company Law, 1995 / Restraints of Trade through State Practices and EC Legal Order, 1996/ Law of dinstinctive marks, 1996/ Unfair and misleading advertising, 1997/ Representation through Managers and Powers of Attorney in Company Law, 1997/ Passing of the risk under artt. 66-70 of the UN Convention on Contracts for the International Sale of Goods, 1998 / TV-advertising: On the Obligation of a TV-Station not to Discriminate between its Own Subsidiaries and Third Enterprises, 2005 / The Letter of Comfort ad incertas personas as a Means to Protect the Creditors of a Subsidiary, 2006 / Rethinking the Implementation of Competition Law in Greece, 2007 / New Developments on Shareholders’ Liability: Farewell to Lifting the Corporate Veil? 2009 / Zusammenschlusskontrolle und “Sanierungsfusionen” in Zeiten der Wirtschaftskrise, 2010 / On the Compatibility of Unfair Trade Practices and Competition Law, 2011 / The MFN Clause in online hotel booking under Art. 101 TFEU, 2015 / Sale Prohibitions of Selective Distribution Products through Third Party Online Platforms under art. 101 TFEU, 2018 / Horizontal shareholding under EU Competition Law, 2020.