Osler, Hoskin & Harcourt LLP

Deborah A Glendinning

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This content is provided by Deborah A Glendinning.

Practice Areas

Deborah is a partner in the Litigation Department and practices nationally - defending and strategically advising on avoidance of complex business critical multi-jurisdictional class actions and other large aggregate claims and regulatory matters. National coordinating counsel to Imperial Tobacco Canada Limited in the largest portfolio of litigation in Canadian history, claims totaling approx. 700 Bn.


Results driven, innovative and disruptive legal thinker focused on providing business solutions. Frequent speaker and author on cross-border, complex and multi-jurisdictional class actions and risk management topics. Co-Chair of the ABA’s international subcommittee on class actions.

Professional Memberships

Law Society of Ontario; Canadian Bar Association; Metropolitan Toronto Lawyers Association; Advocate's Society; American Bar Association


University of Ottawa, LL.B.

University of Toronto, B.A.