Ian’s expertise spans high value and complex commercial, fraud (both criminal and civil), and employment disputes in the UK, Middle East and Asia. In the course of his career he has acted for a wide range of companies, financial institutions and individuals involved in domestic and international litigation and arbitration across a variety of sectors including banking, manufacturing, automotive, oil & gas, investment and property.

Ian was accredited as a mediator by CEDR in 1997 and is an experienced mediator. He is a partner in the firm’s Commercial Disputes group, managing significant litigation and arbitration in a wide variety of areas of law and practice.


Recent cases include:

  • Libyan Investment Authority v JP Morgan
  • Libyan Investment Authority v Credit Suisse
  • National Bank of Kazakhstan v Bank of New York Mellon
  • The Orb Litigation
  • iiyama v Samsung
  • Brakes/Guy litigation





The Legal 500 states that “Ian Gatt KC must be regarded as one of the genuine stars of [the banking litigation] sector” and ranks him in the Dispute Resolution: Commercial Litigation: Premium Hall of Fame. “Ian Gatt KC must be one of the best in the business – deeply experienced, superb on strategy, and a great team leader when in the trenches on heavy litigation,” the guide says.


Ian has a first class Law degree from Herford College, Oxford. He was called to the Bar in 1985 and appointed QC in 2002. Having practiced as a barrister at Littleton Chambers from 1985 to 2005, Ian was admitted as a solicitor in 2006. Prior to joining Stewarts in 2017, Ian was a partner at Herbert Smith Freehills.


Ian enjoys travel, drumming, live music, theatre and spending time with his family.