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Mark Johnson is a partner in the firm’s Hong Kong office and a member of the International Dispute Resolution Group. His practice focuses on white collar/regulatory defense matters, cybersecurity matters and commercial litigation in Hong Kong and across Asia.

Mr. Johnson joined Debevoise in March 2015. Prior to joining the firm, Mr. Johnson was a partner at a leading international firm in Hong Kong, where he oversaw the opening of the firm’s disputes practices in Singapore, Jakarta, Bangkok, Beijing, Seoul, Shanghai and Tokyo.

For more than 25 years in the region, Mr. Johnson has built a successful practice advising on shareholders’ and directors’ disputes, internal and regulatory investigations, commercial litigation and inquiries from a range of regulatory bodies, both in Asia and elsewhere. These include matters involving the Hong Kong Securities and Futures Commission, the Hong Kong Monetary Authority, the Hong Kong Stock Exchange and the Independent Commission Against Corruption. Much of his work is in the financial services and private wealth sectors.

Mr. Johnson has become one of Asia’s most respected and experienced litigators. Chambers Asia-Pacific (2020) ranks him as a Band 1 lawyer in China for financial services: contentious regulatory matters and as a leading lawyer for litigation. Clients praise his skill, saying that he is a “very experienced” litigator who has “built a decent reputation in the investigations and regulatory space,” and that he is “a terrific lawyer” who is “doing an outstanding job on high-stakes and complex matters.” According to previous editions of the guide, “complex regulatory matters in difficult jurisdictions are his sweet spot,” and he has “very strong judgement, creativity and excellent insight.” The Legal 500 Asia Pacific (2020) lists Mr. Johnson as a leading individual for litigation, as well as for his anti-corruption and compliance practice. He is ranked for dispute resolution and also recommended for his corporate investigations/anti-corruption practice in Chambers Global (2020), where he is described as a “very experienced” litigator who has “built a decent reputation in the investigations and regulatory space.” Previous editions of the guide note that he is “very, very knowledgeable,” while The Legal 500 Asia Pacific labels him an “Asia disputes doyen.” IFLR1000 (2020) recommends Mr. Johnson for Financial Services Regulatory work, Benchmark Litigation (Asia-Pacific) (2019) names him a Dispute Resolution Star and he is named by Expert Guides in its “Best of the Best” list for Litigation and White Collar Crime.

Mr. Johnson's recent publications include “Singapore’s Chief Justice Clarifies Sentencing Guidelines For Private Sector Bribery,” Global Investigations Review (May, 2015).

Mr. Johnson holds a law degree from Bristol University. He is admitted to practice as a solicitor in Hong Kong and England & Wales.


  • University of Bristol, 1983, Bachelor of Laws

Bar Admissions

  • Solicitor, England & Wales
  • Hong Kong