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Summarize
Gannon Beaulne combines an analytical approach and deep knowledge of the law with a practical and strategic mindset to bring clarity to complex disputes and achieve a preferred resolution.

Overview

Gannon’s practice focuses on complex commercial and corporate litigation, class actions, international arbitration, and public law. He has extensive trial-level and appellate experience, regularly appearing before all levels of court in Ontario and the Supreme Court of Canada.

Gannon has been recognized as a Future Star by Benchmark Litigation Canada and named to the Benchmark Litigation 40 & Under List.

Gannon advises clients on a range of disputes and issues. He has particular experience with matters involving commercial contracts, negligent performance of services, professional negligence, institutional negligence, fiduciary duties, corporate oppression, shareholder and partnership disputes, legal privileges and immunities, injunctive relief, constitutional law, administrative law, statutory interpretation, private international law, letters of request (also called letters rogatory), and the recognition and enforcement of judgments and arbitral awards.

A frequent writer and speaker, Gannon has been published in many academic, legal, and industry journals and other publications, including the Commercial Litigation and Arbitration Review, The Advocates’ Journal, and the Alberta Law Review. He has contributed to policy papers as well as legal treatises and similar resources. He is often invited to speak at national and international conferences and events, and has been interviewed on the radio and quoted in print media, including the Financial Post and the Toronto Star.

Gannon is actively involved with the American Bar Association, including leadership of the Litigation Section, and The Advocates’ Society.

Client Work

Counsel to a foreign state owned entity in a $280-million international commercial arbitration against a Canadian company regarding a contractual dispute
Bureau Veritas SA, a publicly traded international certification and testing agency, in its successful defence of a $1.85-billion proposed class action commenced against it and Loblaws Companies Limited alleging they neglected to warn workers of structural deficiencies in the Rana Plaza building in Bangladesh. Das v George Weston Ltd, 2018 ONCA 1053, aff’g 2017 ONSC 5583.
Representation of accounting and law firms in proposed class actions regarding Canada Revenue Agency reassessments of taxpayers who had participated in Canadian charitable-giving tax shelter programs.
Representation of a First Nation in successfully obtaining a Mareva injunction to freeze the assets of alleged fraudsters. Kashechewan First Nation v Kirkland, 2018 ONSC 3014.
Representation of a hospitality company in successfully seeking the dismissal of a $20-million breach of contract claim on a summary judgment motion, before the Superior Court of Justice and the Court of Appeal for Ontario. Westmount-Keele Limited v Royal Host REIT, 2017 ONCA 673.
Parkland Fuel Corporation, a Canadian independent fuel retailer, in the defence of its acquisition of Pioneer Energy, including successfully resisting a hold-separate order in 8 of 14 local communities in issue. The Commissioner of Competition v Parkland Industries Ltd, 2015 CACT 4.

Recognitions & Awards

Benchmark Litigation: Canada

40 & Under Hot List
Recognized as a Future Star

Best Lawyers in Canada

Ones to Watch, Corporate and Commercial Litigation

Education & Bar Admissions

Education

  • Queen's University, BA (Honours), 2009, with distinction, Dean's Honour List, Dr. Robert John Wilson Scholarship
  • Queen's University, JD, 2012, Dean's List, John D.B. Walton Scholarship in Administrative Law
  • International Business Law Certificate, Bader International Study Centre (England), Queen's University

Bar Admissions

  • Ontario, 2013

Insights

Court of Appeal Certifies Negligence Claim Against Gun Manufacturer for Mass ShootingBlog

Court of Appeal Certifies Negligence Claim Against Gun Manufacturer for Mass Shooting

July 22, 2025
Gannon BeaulneThomas FeoreMaisah Syed
Gannon Beaulne, Thomas Feore & Maisah Syed
Class Actions Looking Forward 2025Update

Class Actions: Looking Forward 2025

May 22, 2025
Emrys DavisMichael A. Eizenga L.S.M.Gannon Beaulne
& 19 more
Supreme Court Approves Constitutionality of Multi-Crown Class ActionBlog

Supreme Court Approves Constitutionality of Multi-Crown Class Action

May 22, 2025
Gannon BeaulneEdward W. Hulshof
Gannon Beaulne & Edward W. Hulshof

News, Events & Speaking Engagements

PlaceholderIn The News

Lincoln Caylor and Gannon Beaulne on Mandatory Minimum Sentencing

April 15, 2015
Gannon BeaulneLincoln Caylor
Gannon Beaulne & Lincoln Caylor