LAWYER PROFILE
Deborah A Glendinning

Deborah A Glendinning

Canada 2026

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Ranked in 2 practice areas

About

Provided by Osler, Hoskin & Harcourt LLP

Canada

Practice Areas

Deborah is a partner in the Disputes department and practices nationally — defending and strategically advising on the avoidance of complex business critical multi-jurisdictional class actions and other large aggregate claims, particularly corporate, commercial and banking disputes, product liability and negligence claims.

Deborah’s experience includes acting as national coordinating counsel for a major consumer product company which requires strategic oversight and coordination of litigation internationally. Over the past 20 years, she has acted on cases which have produced ground-breaking decisions dealing with procedural and evidentiary aspects of certification, acted as coordinating counsel in cross border cases and provided advice and assistance to corporations seeking to implement measures to avoid class action litigation. Deborah is a results driven, innovative and disruptive legal thinker focused on providing business solutions.

She is a Frequent speaker and author on cross-border, complex and multi-jurisdictional class actions and risk management topics; developed and taught advocacy and training programs; and Co-Chair of the ABA’s international subcommittee on class actions. In 2014, 2015, and 2016, Deborah was selected by Benchmark Canada to the inaugural Top 25 Women in Canadian Litigation list.

Career

University of Ottawa, LL.B.

University of Toronto, B.A.

Bar Admission: Ontario, 1990

Professional Memberships

Law Society of Ontario

Canadian Bar Association

Metropolitan Toronto Lawyers Association

Advocate's Society

American Bar Association

Chambers Review

Provided by Chambers

Chambers Canada Guide

Litigation: Product Liability - Nationwide - Canada

Band 2
Band 2

Individual Editorial
Toronto-based Deborah Glendinning has a wealth of experience in resolving complex product liability class actions, notably in the tobacco industry.

Dispute Resolution: Class Action (Defence) - Nationwide - Canada

Band 3
Band 3

Individual Editorial
Deborah Glendinning is an accomplished Toronto-based litigator with experience appearing in high-profile class actions including those in the tobacco and pharmaceutical sectors.

Strengths

Provided by Chambers

  • Deborah Glendenning is a really good lawyer.

    Litigation: Product LiabilityChambers Canada Guide
  • Deborah demonstrates legal prowess, clarity and persuasiveness.

    Litigation: Product LiabilityChambers Canada Guide
  • Deborah Glendinning is an outstanding lawyer.

    Dispute Resolution: Class Action (Defence)Chambers Canada Guide

Ranked Individuals at Osler, Hoskin & Harcourt LLP (198)

Alberta

British Columbia

Nationwide - Canada

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