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.

Unveiling The Hidden Risks: How CVCs Can Cause Serious Harm To Patients

When Shirley had a central venous catheter (CVC) implanted to provide easier access to her veins for treatment of a chronic health condition...

Canada Litigation

SL

Siskinds LLP

Is It Viable? Is It Common? British Columbia Court Of Appeal Reinforces Requirements For Certification

This month, the Court of Appeal for British Columbia released two decisions within two days providing guidance on class action certification in the province: RateMDs Inc. v. Bleuler and Syngenta AG v. Van Wijngaarden.

Canada Litigation

TL

Torys LLP

Court Says Pleading Systemic Negligence Isn't Enough For Certification – Claim Must Be Manageable

In Carcillo v. Ontario Major Junior Hockey League, the Court of Appeal for Ontario dismissed an appeal from a decision refusing certification of a class action against Canada's major junior hockey leagues for alleged systemic negligence. Claims.

Canada Litigation

GW

Gowling WLG

British Columbia Introduces Vaping Cost Recovery Legislation (Bill 24)

British Columbia has introduced new cost recovery legislation: Bill 24, the Vaping Product Damages and Health Care Costs Recovery Act (the "Vaping Cost Recovery Act").

Canada Healthcare

MT

McCarthy Tétrault LLP

Tendances actuelles – Octobre : Action collective en matière d'indications de prix partiel, responsabilité du fait des produits, tarifs douaniers américains, et plus encore

Canada International

MT

McCarthy Tétrault LLP

October Timely Topics: Drip Pricing Class Action Implications, Key Product Liability Cases, The Latest In U.S. Tariffs, And More

Canada Consumer

MT

McCarthy Tétrault LLP

Novel Privacy Claims And The Limits Of Class Action Certification: RateMDs Inc. v. Bleuler, 2025 BCCA 329

BL

Borden Ladner Gervais LLP

Class Actions In Canada: At The Forefront Of Pharma Litigation (Video)

Canada Litigation

F

Fasken

AI Class Actions In Canada: New Legal Ground Or The Same Old Claims?

Canada Technology

TL

Torys LLP

Actions collectives au Canada : à l'avant-plan des litiges pharmaceutiques (Video)

Canada Litigation

FF

Fasken (French)

Yes, You Can Be Sued In A Securities Class Action When A Public Correction Causes No Price Decline

Canada Litigation

MT

McCarthy Tétrault LLP

Court Of Appeal Summaries (September 22-26, 2025)

Canada Litigation

BM

Blaney McMurtry LLP

Class Actions Landscape In Financial Services

TL

Torys LLP

What Longair v. Akumin Means For Issuers: Disclosure, Market Efficiency And Liability Risks

Canada Litigation

D

Dentons Canada LLP

A Canadian Tax Lawyer's Updated Guide On Non-Resident Trusts In Canada

RS

Rotfleisch & Samulovitch P.C.

Hot Topics, Big Shifts: Five Key Employment Law Developments From Summer 2025

Canada Employment

D

Dentons Canada LLP

Mergers And Acquisitions In The Defence Sector: A Strategic Lever Under High Surveillance

Canada Commercial

D

Dentons Canada LLP

Top 5 Employment Law Decisions Of 2025 And What To Expect In 2026 – Marty Rabinovitch And Leslie Haddock (Video)

Canada Employment

DS

Devry Smith Frank LLP

Landmark RCMP Seizure Of Over $56 Million In Cryptocurrency From TradeOgre

Canada Technology

WL

WeirFoulds LLP

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

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

Le 21 juillet 2025, la Cour supérieure du Québec (la « Cour ») a refusé, dans l'affaire Langlais c. Compagnie Wal-Mart du Canada, 2025 QCCS 2552, l'autorisation d'une action collective pour des fausses...

Canada Litigation

MT

McCarthy Tétrault LLP

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

On July 21, 2025, the Superior Court of Quebec (the "Court") in Langlais c. Wal-Mart Canada Corp., 2025 QCCS 2552 refused to authorize a class action regarding false representations surrounding...

Canada Litigation

MT

McCarthy Tétrault LLP

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

In Morrison v. Hatts Off Inc. et al., 2025 ONSC 4320, the Ontario Superior Court of Justice declined to order pre-certification discovery of sensitive Children's Aid Society records in a proposed class action alleging systemic negligence and fiduciary breaches in children's group homes.

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

When faced with defendants' applications brought before the plaintiff's application to certify a class proceeding, BC courts have often held that there is a presumption that certification will proceed first.

Canada Litigation

BJ

Bennett Jones LLP

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

Canada Litigation

HS

Howie, Sacks & Henry LLP

Canadian Courts Tighten Class Action Rules In Critical Q2 2025 Decisions

The second quarter of 2025 saw several significant developments in Canadian class action jurisprudence, with courts across multiple provinces delivering important rulings that clarify key legal...

Canada Litigation

AB

Aird & Berlis LLP

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

On July 16, 2025, a long-running effort by several film studios to have claims of copyright infringement decided by way of reverse class action reached a further impasse. In Voltage Pictures v Robert Salna...

LS

Lenczner Slaght LLP

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

On June 12, 2025, the Ontario Securities Commission (OSC) published final rules to facilitate the implementation of a new statutory framework for distributing amounts collected by the OSC under disgorgement orders to harmed investors.

Canada Litigation

OH

Osler, Hoskin & Harcourt LLP

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

The Court of Appeal for Ontario has certified a class action against the manufacturer of a stolen handgun used to carry out the 2018 mass shooting on Danforth Avenue in Toronto, reversing in part the motion judge's decision below.

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

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

Canada Commercial

MT

McCarthy Tétrault LLP

TD Mutual Funds Class Action Regarding Trailing Commissions Paid To Discount Brokers – Notice Of Approved Settlement And Commencement Of Claim-Filing Process

Canada Litigation

SL

Siskinds LLP

New Private Rights Of Action Have Come Into Force

Canada Anti-trust

F

Fasken

Class Action Lawsuit Against Gun Manufacturer Gets Certified (Price v. Smith & Wesson Corp.)

Canada Litigation

GR

Gardiner Roberts LLP

Ontario Court Of Appeal Certifies Negligence Class Action Against Gun Manufacturer In Mass Shooting Case

Canada Litigation

LS

Lenczner Slaght LLP

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

Canada Anti-trust

BC

Blake, Cassels & Graydon LLP

A Prime Example Of Class Action Defence In The Gig Economy

Canada Employment

ML

McMillan LLP

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

Canada Litigation

BJ

Bennett Jones LLP

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

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

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Latest Videos

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Class Actions In Canada: At The Forefront Of Pharma Litigation (Video)

F

Fasken

Actions collectives au Canada : à l'avant-plan des litiges pharmaceutiques (Video)

FF

Fasken (French)

What Makes A Case Historic? (Video)

BD

Burnet, Duckworth & Palmer LLP

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

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