Canada: Class Actions

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Litigation law, mediation law, and arbitrage law thought leadership, articles, podcasts, videos and webinars from expert sources across the legal world. Explore insights covering civil law, class actions, dispute resolution, libel and defamation and more in relation to litigation, mediation and arbitration.

Episode 23: Tataryn And Barbiero : Dismissing Class Actions For Delay (Podcast)

When should – or must – a class action be dismissed for delay? In Tataryn v. Diamond & Diamond Lawyers LLP and Barbiero v. Pollack, the Court of Appeal for Ontario applied...

Canada Litigation

MT

McCarthy Tétrault LLP

Securities Class Action: Court Of Appeal Clarifies Public Correction Requirements

In a decision released early this month in Terry Longhair Professional Corporation v. Akumin Inc., Ontario's Court of Appeal upheld the decision of Madam Justice Akbarali...

Canada Commercial

AG

Affleck Greene McMurtry LLP

Deane v. Canada Post : la décision d'autorisation d'un recours collectif en matière d'indication de prix partiel est portée en appel

L'introduction des dispositions relatives aux indications de prix partiel dans la Loi sur la concurrence, L.R.C. 1985, c. C-34, par le projet de loi C-19 de 2022, a donné lieu à une vague d'actions collectives...

Canada Anti-trust

MT

McCarthy Tétrault LLP

Trauma-Informed Practices In Class Action Claims Administration

Since their inception in Canada, class actions and mass torts increasingly involve claimants who have endured abuse, systemic harms, or traumatic injuries.

Canada Litigation

HS

Howie, Sacks & Henry LLP

Contaminated Cooling Towers Cause Multiple Outbreaks Of Legionnaires' Disease In London, Ontario

Canada Healthcare

SL

Siskinds LLP

Deane v. Canada Post: Critical Drip Pricing Class Certification Decision Is On Appeal

Canada Litigation

MT

McCarthy Tétrault LLP

Statistically Significant, Or It Didn't Happen? Corrective Disclosure Under The Securities Act

Canada Litigation

LS

Lenczner Slaght LLP

Court Of Appeal Summaries (September 1 – September 5)

Canada Litigation

BM

Blaney McMurtry LLP

Canadians Begin Receiving Payments From $78M Auto Parts Class Action Settlement

Canada Litigation

SL

Siskinds LLP

Court Of Appeal Clarifies Meaning Of Public Correction In Upholding Decision Allowing Securities Class Action To Proceed

Canada Litigation

AG

Affleck Greene McMurtry LLP

La Cour supérieure du Québec refuse l'autorisation d'une action collective en droit de la consommation

Canada Litigation

MT

McCarthy Tétrault LLP

The Superior Court Of Québec Refuses To Authorize A Class Action In Consumer Law

Canada Litigation

MT

McCarthy Tétrault LLP

Ontario Superior Court Rejects Pre-Certification Discovery In Children's Homes Class Action

Canada Litigation

BJ

Bennett Jones LLP

BC Court Rules Class Action Plaintiffs Cannot Delay Pre-Certification Applications If The Plaintiff Has Not Applied For Certification

Canada Litigation

BJ

Bennett Jones LLP

Ontario Court Of Appeal Upholds Certification Of Class Proceeding On Behalf Of Cryptocurrency Traders: Confirms That The Novelty And Inherent Risk Of Such Financial Instruments Necessitates Adequate & Timely Disclosure

Canada Technology

DA

DMG Advocates

Tariffs Up, Tariffs Down: What Businesses Need To Know

Canada International

MT

McCarthy Tétrault LLP

No Salary, No Problem – The Use Of Dividends In Small Businesses To Reduce Tax Liability

DS

Devry Smith Frank LLP

Canada-U.S. Trade: Canada Rolls Back Retaliatory Tariffs On CUSMA-Compliant Goods, Matching Current U.S. Approach

TL

Torys LLP

US Suspends De Minimis Duty-Free Treatment

Canada International

MK

Millar Kreklewetz

The Case For Gender-Specific Class Actions In Light Of Failed Government Policies

Across sectors, government policies built on faulty evidence-based approaches ("EBA") have disproportionately failed women, leading to preventable harm.

Canada Litigation

HS

Howie, Sacks & Henry LLP

Decertification Denied: Drawing The Line Between Consumer And Business Subscribers, Once Again

Wellman v. TELUS Communications Co.[1] is an Ontario class action in which the plaintiffs allege that TELUS engaged in systematic overbilling of its mobile phone subscribers.

Canada Litigation

MT

McCarthy Tétrault LLP

Federal Court Of Appeal Dismisses Class Action Certification Due To Unavoidable Individualized Inquiries

In Voltage Pictures v Robert Salna, 2025 FCA 131, the Federal Court of Appeal addressed the preferable procedure criterion in the context of a defendants' class proceeding.

Canada Litigation

BJ

Bennett Jones LLP

Copyright Notice And Notice: The Voltage Pictures Case

The Federal Court of Appeal released an important decision comprehensively reviewing the notice and notice regime in the Copyright Act (the "N&N regime") in Voltage Pictures v. Robert Salna 2025 FCA 131.

Canada Litigation

MT

McCarthy Tétrault LLP

Can You Be Sued In A Securities Class Action When The Correction Causes No Price Decline?

Canada Litigation

MT

McCarthy Tétrault LLP

Canadian Courts Tighten Class Action Rules In Critical Q2 2025 Decisions

Canada Litigation

AB

Aird & Berlis LLP

Class Dismissed: Copyright Reverse Class Action Fails To Get Passing Grade

LS

Lenczner Slaght LLP

OSC Adopts New Framework To Distribute Funds From Disgorgement Orders To Harmed Investors

Canada Litigation

OH

Osler, Hoskin & Harcourt LLP

Court Of Appeal Certifies Negligence Claim Against Gun Manufacturer For Mass Shooting

Canada Litigation

BJ

Bennett Jones LLP

#ad Or #lawsuit? Investigating The Rise Of Class Action Litigation Targeting Influencer Marketing

Canada Media & IT

GW

Gowling WLG

Court Of Appeal Certifies Class Action Against Smith & Wesson: Implications For Future Lawsuits

Canada Litigation

MO

McLeish Orlando LLP

Dentons Quarterly Privacy Litigation Digest

D

Dentons Canada LLP

Commercial Litigation Insights: Restrictions On Liability For Pure Economic Loss Put The Brakes On Class Action Against BMW

Canada Litigation

WL

WeirFoulds LLP

Dionne c. HEXO Corp. : Quand la qualité de la preuve se révèle à l'autorisation

Canada Commercial

MT

McCarthy Tétrault LLP

Court Of Appeal Certifies Class Action Against Smith & Wesson: Implications For Future Lawsuits

In the summer of 2018, a mass shooting took place on Toronto's Danforth Avenue, where fifteen people were shot and two lost their lives.

Canada Litigation

MO

McLeish Orlando LLP

Dentons Quarterly Privacy Litigation Digest

Introducing the Dentons quarterly privacy litigation digest – your comprehensive review of privacy litigation developments impacting businesses across Canada. In each quarterly issue, our Privacy Litigation Team...

D

Dentons Canada LLP

Commercial Litigation Insights: Restrictions On Liability For Pure Economic Loss Put The Brakes On Class Action Against BMW

Tort law in Canada narrowly restricts liability in negligence for pure economic loss. This is demonstrated in the recent decision of the Court of Appeal for Ontario in North v. Bayerische Motoren Werke AG, 2025 ONCA 340...

Canada Litigation

WL

WeirFoulds LLP

Dionne c. HEXO Corp. : Quand la qualité de la preuve se révèle à l'autorisation

Dans l'affaire Dionne c. HEXO Corp., la Cour d'appel du Québec a suivi la tendance croissante des tribunaux canadiens qui semblent être de plus en plus disposés à rejeter les actions collectives non fondées...

Canada Commercial

MT

McCarthy Tétrault LLP

Dionne C. HEXO Corp.: When Proof Is In The Pudding

Canada Commercial

MT

McCarthy Tétrault LLP

Régime d'accès privé de la Loi sur la concurrence : Élargissement du champ d'application et nouvelle indemnisation pécuniaire

Des modifications à la Loi sur la concurrence (la « Loi ») qui élargissent le régime d'accès privé (le « régime ») de cette dernière sont entrées en vigueur le 20 juin 2025 (les « modifications »).

Canada Anti-trust

BC

Blake, Cassels & Graydon LLP

A Prime Example Of Class Action Defence In The Gig Economy

In Davis v. Amazon Canada Fulfillment Services, 2025 ONCA 421, the Court of Appeal for Ontario ("ONCA") upheld a motion judge's decision to stay and dismiss a proposed class proceeding against...

Canada Employment

ML

McMillan LLP

No Common Employer Means No Class Action—Ontario Court Of Appeal

The Ontario Court of Appeal has concluded that a client's influence over a service provider's processes does not establish an employment relationship between the client and the service provider's employees.

Canada Litigation

BJ

Bennett Jones LLP

Private Right Of Access For Relief From Anti-competitive Harm Now In Force In Canada

The new private right of access under the Competition Act (the Act) came into force on June 20, 2025. Under this new provision, private parties will have significantly expanded access to the Competition Tribunal...

Canada Anti-trust

OH

Osler, Hoskin & Harcourt LLP

Competition Tribunal Private Access Expansion: 2025 Canadian Competition Act Litigation Update

Canada Anti-trust

ML

McMillan LLP

The Very Large And Vexing Lawsuit Re: Cannabinoid Hyperemesis Syndrome

Canada Cannabis

HS

Harris Sliwoski

Class Action Grounded: Court Finds Insufficient Factual Basis For Airline Capacity Constraint Suit

Canada Litigation

DW

Davies Ward Phillips & Vineberg

Court Of Appeal Summaries (June 9-13, 2025)

Canada Litigation

BM

Blaney McMurtry LLP

Federal Court Rejects Class Action For Treaty 4 Annuity Claims: Representative Action Ordered

Canada Litigation

LS

Lenczner Slaght LLP

BC Court Finds No Identifiable Class In Mall-Directory Camera Privacy Class Action

BJ

Bennett Jones LLP

Breach = Damages: BC Court Of Appeal Upholds Privacy Breach Damages Strictly Based On The Occurrence Of The Breach

C

Cassels

What Class Action Settlement Costs Will A Defendant's Insurer Cover? The Ontario Superior Court Of Justice Provides Some Answers

Canada Insurance

BJ

Bennett Jones LLP

La Cour d'appel de la Colombie-Britannique confirme l'octroi de dommages-intérêts pour atteinte à la vie privée sans preuve de préjudice

Canada Litigation

BC

Blake, Cassels & Graydon LLP

Is It A Rabbit Or A Duck? Why Lawyers Must Be Storytellers

Canada Litigation

LL

Lerners LLP

"This Creature Called Conditional Certification": Ontario Court Of Appeal Overturns Certification In Veterans' Proposed Class Action

Canada Litigation

MT

McCarthy Tétrault LLP

Court Of Appeal Summaries (May 26-30)

Canada Litigation

BM

Blaney McMurtry LLP

La Cour d'appel de l'Ontario confirme l'autorisation d'une action collective contre une plateforme d'échange de cryptomonnaies

Canada Technology

BC

Blake, Cassels & Graydon LLP

Ontario Court Of Appeal Addresses The Duty To Warn And Declines To Certify Claims For Pure Economic Loss In A Product Liability Class Action

Canada Litigation

MT

McCarthy Tétrault LLP

Court Of Appeal Summaries (May 19 – 23, 2025)

Canada Litigation

BM

Blaney McMurtry LLP

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Latest Videos

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Class Actions In Canada: Hot Topics Shaping Tech Litigation (Video)

F

Fasken

Les actions collectives au Canada : les sujets d'actualité qui façonnent les litiges dans le secteur des technologies (Video)

FF

Fasken (French)

What Is A Class Action Lawsuit? What Is A Mass Tort Action? What's The Difference? (Video)

GP

Gluckstein Lawyers

ESG And Shareholder Activism: Key Tips For Issuers (Video)

OH

Osler, Hoskin & Harcourt LLP

Class Action Lawsuits Require An Experienced Hand (Video)

BD

Burnet, Duckworth & Palmer LLP

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