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Shinya Watanabe
Of Counsel


(T) +81.3.6800.1820
(F) +81.3.5401.2725


  • Cornell University (LL.M. 1984); The Legal Training and Research Institute of the Supreme Court of Japan (1979); Keio University (B.A. in Economics 1973)

Bar Admissions

  • Japan (Daini Tokyo Bar Association)

Shinya Watanabe practices antitrust and competition law with an emphasis on international enforcement in relation to cartels, mergers and acquisitions, and other cross-border transactions. He also has significant experience in labor and employment law, including labor dispute resolution, especially for foreign companies operating in Japan. In addition, he has almost 30 years of experience in other types of international dispute resolution and cross-border transactions. He heads the antitrust practice in the Tokyo Office.

He has represented foreign companies before the Japan Fair Trade Commission and Japanese multinational companies before such foreign enforcement agencies as the U.S. Department of Justice and European Commission. He also has represented many foreign companies before the courts in Japan in labor disputes such as employee terminations, restructuring of labor contracts, and payment of overtime compensation.

Shinya is currently a member of the Antitrust Working Group of the Japan Federation of Bar Associations and a member of the executive board of the Japan Competition Law Forum. In addition, he serves as an adjunct professor at Keio Law School where he teaches antitrust law. Shinya was appointed by the Tokyo District Court as an arbitrator in construction dispute resolutions and served in that capacity for six years. He also was appointed by the Japan Law Federation as one of the researchers for a comparative study on the relationship between antitrust laws and intellectual property rights in Japan, the United States, Canada, and the European Union.

Honors & Distinctions

  • Ranked as a leading individual for antitrust law by Legal 500 Asia Pacific (2014-2018)

    Ranked as a leading lawyer for antitrust law by Chambers Asia-Pacific (2011-2016)

    Nominated for antitrust law by Best Lawyers in Japan (2009)


English, Japanese
Shinya Watanabe