Catriona Hatton is Co-Chair of the firm's Global Antitrust and Competition Law group and a member of the firm's Executive Committee. She has over three decades of experience advising on the EU and international merger control aspects of high-stakes global transactions, representing parties in many of the most high-profile, market-leading cases Catriona is Senior Vice-Chair of the International Bar Association's Antitrust Section.
Catriona has represented clients in complaints to, and investigations by, the European Commission and numerous national competition authorities. She advises clients in a number of sectors, including pharmaceuticals, mining, media and entertainment, automotive and energy.
Catriona is named a Global Elite Thought Leader (2019) by Who's Who Legal and is recommended in the recent edition of Chambers Europe 2025 as a business-oriented practitioner. She is also recommended in the recent edition of Chambers Global 2025 where she is particularly praised for her commercial acumen and her work in international merger control.
The Legal 500 EMEA 2025 recognises Catriona as a Hall of Fame lawyer, a recognition extended to “lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work”.
She was named one of the leading “100 Women in Antitrust” by Global Competition Review in 2009, 2013 and 2016.
She is also listed in Euromoney's Legal Expert Guide (2014), where clients referred to her as “Brilliant, quick-thinking, great to work with, vast experience in very relevant cases.”
Catriona speaks English, Dutch, French and Italian.
*Prior to joining Baker Botts
Recognized in The Legal 500 EMEA as "Hall of Fame" for Competition EU & Global, 2022-2025
Listed in The Legal 500 EMEA as a "Leading Individual" for Competition EU & Global, 2020 & 2021, 2023
Named "Lawyer of the Year" in European Union Law, (Brussels) by Best Lawyers, 2018
Recommended in Chambers Global, 2014-2025 for Competition/European Law - Belgium
Recommended in Chambers Europe, 2013-2025 for Competition/European Law - Belgium
Ranked as one of the "Top 100 Women in Antitrust Globally," in Global Competition Review's (GCR) Women in Antitrust, 2009, 2013 and 2016