John McElroy

John McElroy

  • Head of Commercial Disputes and Partner
  • London
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John McElroy is a commercial dispute resolution expert and Head of the Commercial Disputes Team in London. He has extensive experience dealing with complex and often high value commercial litigation and international arbitration matters, with a particular emphasis on financial services disputes.


John has acted in all divisions of the English High Court and his cases regularly involve international elements. He has been involved in LCIA, ICC, LME, LMAA and ad hoc arbitrations - involving parties in various different jurisdictions - and in various ICSID arbitrations. He has also acted in cases before the Courts of the British Virgin Islands.

John is currently acting on a variety of commercial litigation matters ranging from High Court employment disputes to breach of warranty claims, insolvency disputes and international arbitrations. He has also acted on intellectual property, trusts, property and tax disputes. Most recently, he has been instructed on matters arising out of the COVID-19 pandemic involving issues such as force majeure and frustration.

He was the partner responsible for the Stuart Wall v. The Royal Bank of Scotland plc case, recognised by The Lawyer’s Top 20 Litigation of 2017. He was also responsible for the Premier Motor Auctions case against PwC and Lloyds Bank, similarly recognised by the The Lawyer in their Top 20 cases of 2018. In 2016, John was the lead lawyer representing the successful claimants on the first case to reach a judgment in the London High Court’s new Financial List. He has also acted in regulatory investigations involving both the Financial Conduct Authority and the Securities and Exchange Commission. Most recently, John led the ground-breaking claim acting for New Balance against Liverpool FC arising out of a sponsorship agreement related to the provision of playing kit and other licensed products.


John’s diverse client base include major domestic and international companies including clients in the sports, travel and retail industries, as well as individuals’ commercial interests.

He also has extensive experience of acting for and against groups of claimants, ranging from defending clients on claims being brought by groups of individuals, to advising groups of bondholders and institutional shareholders against major international banks and corporates.