Mathieu Lévesque
Partner
- Year of Call, Quebec (2001)

Mathieu Lévesque is a partner in the Commercial Litigation Group in Gowling WLG's Montréal office. He is also a member of the firm's Financial Institutions & Services and Restructuring & Insolvency groups.
Mathieu is a seasoned professional and trusted advisor to the leading financial institutions in Canada. His practice focuses on banking litigation, which includes the defense of class actions, as well as bankruptcy, insolvency and financial restructuring.
He also possesses in-depth experience advising clients in the following areas:
Working closely with financial institutions and consulting firms, Mathieu advises litigation groups and special account managers on a broad array of issues. He also represents banks in payment system-related matters and in litigation involving fraud, fraudulent transfers and misappropriation of funds. Additionally, Mathieu is a sought-after advisor to the Canadian Bankers Association, leveraging his extensive knowledge and experience to provide valuable insights.
Mathieu has appeared at all levels of court, including before the Québec Court of Appeal and the Supreme Court of Canada, where he has intervened on three occasions. He offers his expertise in dispute resolution and in matters affecting the banking industry, and he represents financial institutions before the Federal Court, the Federal Court of Appeal (PIPEDA), and the Commission d’accès à l’information du Québec. He recently appeared on behalf of the Canadian Bankers Association before the Supreme Court of Canada in Opsis Services aéroportuaires inc. v. Québec (Attorney General), 2025 SCC 17, seeking clarification on the application of the doctrine of interjurisdictional immunity, including the degree of impairment required at the core of an exclusive head of power for the doctrine to apply.
Prior to joining Gowling WLG, Matthieu worked for nearly 20 years in the Montréal office of a national law firm.
Qualified as a "stand-out lawyer" by clients according to thein the Thomson Reuters Stand-out Lawyers list.