Defamation — Ontario Employment Law
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About Defamation
Defamation in the workplace occurs when an employer, employee, or former employee makes a false statement that harms another person's reputation. It's a serious issue that can arise during performance reviews, reference checks, or in the aftermath of a termination. In Ontario, defamation is divided into two categories: libel (written or published statements, including emails) and slander (spoken statements). For a statement to be considered defamatory, an employee must generally prove three things: the statement was communicated to a third party, it clearly referred to the employee, and it would lower the employee's reputation in the eyes of a reasonable person.
However, the workplace has unique protections. Employers can often rely on the defence of 'qualified privilege.' This legal principle protects statements made in good faith on a matter of common interest, without malice. For example, a manager providing an honest but negative performance review to HR, or a former employer giving a reference, is typically covered by qualified privilege. To defeat this defence, an employee must prove the employer acted with 'malice'—meaning they knew the statement was false or made it with reckless disregard for the truth, intending to cause harm. This is a high bar to meet.
Defamation claims are often pursued alongside other legal actions, such as wrongful dismissal, especially when an employer alleges 'just cause' for termination based on false accusations of misconduct. For unionized employees, the ability to sue for defamation in court may be limited. Under the principles established in cases like Weber v. Ontario Hydro, if the dispute arises from the collective agreement, it must be handled through the grievance and arbitration process. The specific context of how and why a statement was made is critical in any defamation case, making a detailed analysis of the facts essential before pursuing a claim.
Frequently Asked Questions
What is the difference between my boss giving me a bad review and defamation?
A negative performance review is not automatically defamation. If the comments are based on your manager's honest opinion of your work, even if you disagree, it's likely protected. Defamation occurs when the review contains false statements of fact (not opinion) made with malice, which damage your reputation.
Is there a time limit to sue for defamation in Ontario?
Yes. For libel in a newspaper or broadcast, you must give written notice within six weeks of the libel coming to your knowledge. For most other defamation claims, the general limitation period is two years from the date the claim was discovered, under the Limitations Act, 2002.
My old boss gave me a bad reference and I lost the job. Can I sue them?
You may have a claim if you can prove the reference contained false information and was given maliciously. Former employers are protected by qualified privilege when giving references, so you would need to show they were not just offering an honest, albeit negative, opinion, but were intentionally lying to harm you.
What does 'publication' mean in a defamation case at work?
Publication simply means the defamatory statement was communicated to at least one other person. This could be an email sent to HR, a comment made in a team meeting, a conversation with a prospective employer, or even a post on a company intranet.
Can I be sued for defamation for leaving a negative online review about my former employer?
Yes, employers can sue former employees for defamation. While you are entitled to share your honest opinions, if your review contains false statements of fact that harm the company's reputation, they may have grounds for a libel claim against you.
When should I contact a lawyer about potential defamation by my employer?
You should consider contacting a lawyer when you have clear evidence of a false statement made by your employer that has caused you tangible harm, such as the loss of a job offer or significant damage to your professional standing in your industry.
Common Scenarios
- An employer terminates an employee for 'cause' based on a false allegation of theft and communicates this reason to a recruitment agency, preventing the employee from getting new work.
- During a restructuring, a manager tells the remaining team members that a laid-off colleague was 'not performing' and 'difficult to work with,' when the lay-off was purely economic.
- A company issues a press release about a departing executive that includes false and misleading statements about their conduct to justify the termination.
- An employee is denied a promotion after their supervisor includes fabricated incidents of 'insubordination' in their official performance file submitted to senior management.
What You Should Know
- Carefully document the exact wording of the defamatory statement, who made it, when it was made, and who else heard or saw it.
- If the defamation was in writing (libel), be mindful of the very short notice periods required under Ontario's Libel and Slander Act before you can start a lawsuit.
- Gather evidence of the damages you have suffered, such as emails rescinding a job offer, letters from recruiters, or records of lost business opportunities.
- Remember that truth is an absolute defence to defamation; a statement that is negative but factually correct cannot be the basis of a successful claim.
- Defeating a defence of qualified privilege requires proving malice, which is a complex legal task. Seek advice from an employment lawyer to evaluate the evidence and strength of your case.
Featured Cases
Habash v. St. Clair College of Applied Arts and Technology
2025 ONSC 1441 (CanLII) · 2025-03-04Termination and Defamation: College Employee Sues Individual Officer for Tortious Conduct
A motion to strike claims against an individual defendant for defamation and inducing breach of contract was denied, while leave to amend was granted for the defamation claim. The case involves a senior position termination at a college and allegations of tortious conduct by the individual defendant.
De Montigny v Roy et al et al.
2018 ONSC 858 (CanLII) · 2018-02-05Workplace Harassment and Defamation: Jurisdictional Dispute
A court case regarding jurisdiction over a defamation claim arising from a workplace harassment investigation. The court applied the Weber v. Ontario Hydro framework and Santos v. Crawford Roofing principles to determine if the claim falls under the labour relations regime or if the court has jurisdiction.
Hampton Securities Limited v. Dean
2018 ONSC 101 (CanLII) · 2018-01-08Constructive Dismissal and Wrongful Dismissal: Damages Awarded for Six Months' Salary
A case involving constructive dismissal and wrongful dismissal where the employer unilaterally altered the terms of employment, leading to damages awarded for six months' salary. The court also addressed defamation claims and punitive damages for false allegations, and dismissed a minimum wage claim due to the limitations period. The employment contract's interpretation regarding trading losses was also considered.
Papp v Stokes et al
2017 ONSC 2357 (CanLII) · 2017-04-18Wrongful Dismissal: Four Months' Notice Awarded After Employer Conceded
A wrongful dismissal case where the plaintiff was terminated without cause after less than three years of employment. The court determined that four months' notice was reasonable, applying Bardal factors. The case also involved defamation claims, which were found to be substantially true and not defamatory due to qualified privilege and lack of malice.
Satkunan v Gnanatheepam
2012 CanLII 44948 (ON SC) · 2012-08-13Employment Claims and ESA Provisions: Civil Bar and Defamation
A case involving employment claims for overtime and public holiday pay, where the court must determine if civil claims for matters already resolved under the Employment Standards Act are barred. The case also addresses defamation claims and the amendment of pleadings.
Rodrigues v. Toop
2011 ONSC 794 (CanLII) · 2011-03-02Defamation Case: Qualified Privilege Upheld for Union-Related Communications
A defamation case involving the distribution of a flyer containing allegedly defamatory statements about union executive members. The court upheld qualified privilege for union-related communications and granted summary judgment dismissing the claim due to lack of evidence of distribution to non-union members.
Yeates v. Canada (Attorney General)
2010 ONSC 3407 (CanLII) · 2010-06-09Workplace Harassment and Defamation: Jurisdiction Under PSLRA
A court case involving a CRA employee who alleged workplace harassment, defamation, and destruction of evidence. The court interpreted the Public Service Labour Relations Act (PSLRA) to bar court actions for employment-related disputes, including defamation claims, and held that unresolved grievances do not confer jurisdiction where the PSLRA applies.
Kohlhammer v. Modern Railings & Metalcraft Ltd.
2010 ONSC 30 (CanLII) · 2010-01-06Workplace Harassment and Wrongful Dismissal: Jurisdiction and Collective Agreement Issues
A merits decision involving an employee alleging workplace assault, harassment, and wrongful dismissal. The court determined that the essential character of the dispute falls under a collective agreement and the Labour Relations Act, applying the Weber v. Ontario Hydro principle. The court also addressed jurisdictional issues and dismissed claims for defamation due to insufficient pleadings.
Downham v. Lennox (County)
2005 CanLII 45197 (ON SC) · 2005-12-05Wrongful Dismissal: Municipal Employee Awarded Damages for Bad Faith Termination
A wrongful dismissal case involving a municipal employee who was terminated for alleged misconduct in a housing management role. The court found the employee's conduct to be an isolated error in judgment, not justifying dismissal, and ruled that the employer failed to follow progressive discipline and relied on flawed investigations. The employer was also found to have acted in bad faith, leading to aggravated damages and defamation claims.
Soulos v. Leitch
2005 CanLII 13790 (ON SC) · 2005-01-17Collective Agreement Dispute: Arbitration vs. Court Action
A dispute involving the interpretation of a collective agreement and whether the plaintiffs' claims must be resolved through arbitration under the Labour Relations Act, 1995. The court addressed whether the plaintiffs' defamation and interference claims fall within the scope of the arbitration clause and whether the court action should be stayed in favor of arbitration.
Downey v. Leitner
2004 CanLII 34927 (ON SC) · 2004-10-13Union Discipline and Defamation: Motion to Strike Granted
A civil procedure case involving a motion to strike portions of the defendant's Statement of Defence, with issues related to issue estoppel, jurisdictional challenges, and the Labour Relations Act. The court granted the motion to strike under Rule 21.01(b), finding the pleadings irrelevant or incapable of supporting the defences raised. The case also addresses whether union discipline procedures preclude civil defamation claims and whether issue estoppel applies in such contexts.
Heald v. Toronto District School Board
2004 CanLII 27405 (ON SC) · 2004-02-24Employment Claims Against Toronto District School Board: Defamation, Harassment, and Negligence
A case involving multiple tort and employment law claims against the Toronto District School Board, including allegations of defamation, harassment, misfeasance in public office, and negligence. The court addressed issues of jurisdiction, limitation periods, and whether the defendants' actions constituted legal liability. The claims were largely dismissed due to lack of evidence or statute-barred.
Gittens v. Brown
2003 CanLII 40565 (ON SC) · 2003-07-14Defamation and Wrongful Dismissal: Superintendent Claims Defamation Caused Termination
A wrongful dismissal case where the plaintiff claimed defamation caused their termination as a superintendent. The court found insufficient evidence to establish a causal link between the defamatory statements and the termination, and denied aggravated and punitive damages due to lack of malice.
Bujold v. Taylor
2003 CanLII 6322 (ON SC) · 2003-01-06Defamation Claim and Arbitration: Unionized Employee vs. Collective Agreement
A merits decision involving a unionized employee who brought a defamation claim in court, with the defendants arguing the dispute must be resolved through arbitration under the Collective Agreement. The court considered whether the claim falls within the arbitration regime under the Labour Relations Act and whether defamation claims arising from the employment relationship are subject to arbitration.
Chahal v. Khalsa Community School
2000 CanLII 22602 (ON SC) · 2000-06-30Wrongful Dismissal: Principal of Religious School Terminated Without Cause
A wrongful dismissal case involving a principal of a religious school who was terminated without cause and without being given an opportunity to respond to allegations. The court found the termination to be orchestrated and without just cause, applying principles of wrongful dismissal and procedural fairness. The case also involved issues of contract validity and conspiracy in employment.
Harley v. Campagna
2000 CanLII 22600 (ON SC) · 2000-06-07Defamation and Arbitration in Collective Agreement Disputes
A merits decision involving a workplace dispute where a plaintiff alleged defamation by a co-worker led to their termination. The court determined that disputes arising under collective agreements must be resolved through arbitration, not litigation, applying the Weber v. Ontario Hydro principle. The case also addressed whether truth can serve as a complete defense to defamation claims in this context.
Caressant Care Nursing & Retirement Homes Ltd. v. Priest
1999 CanLII 15053 (ON SC) · 1999-12-14Defamation During Collective Bargaining: Jurisdiction Dispute
A merits decision involving a defamation claim by a union representative during collective bargaining. The court examined whether the Ontario Labour Relations Board has exclusive jurisdiction over the dispute and whether the claim falls under the Labour Relations Act, 1995. The Weber principle was applied to determine jurisdiction.
Richmond v. North American Life Assurance Co.
1998 CanLII 14654 (ON SC) · 1998-02-02Wrongful Dismissal: Plaintiff Adds Defamation Claim and Seeks Joinder
A wrongful dismissal case where the plaintiff sought to amend her statement of claim to include a defamation claim. The court allowed the amendment based on special circumstances and found that the joinder of defamation and wrongful dismissal claims was permissible to avoid unnecessary duplication of proceedings.
Carson v. William W. Creighton Centre (Dist. Ct.)
1990 CanLII 6905 (ON SC) · 1990-06-07Wrongful Dismissal and Slander Allegations: Motion to Strike Dismissed
A wrongful dismissal case where the plaintiff alleged slander and injurious falsehood in connection with their termination. The defendant moved to strike these allegations, arguing they lacked particularity. The court ruled that defamation pleading rules do not apply to wrongful dismissal actions, and the motion to strike was dismissed.
Foley v. Signtech Inc. (Ont. H.C.J.)
1988 CanLII 4780 (ON SC) · 1988-12-12Wrongful Dismissal and Defamation Claims Joined in Ontario Case
A wrongful dismissal case where plaintiffs were terminated without notice and alleged defamation by their employer. The court addressed whether defamation and wrongful dismissal claims can be joined, concluding that such claims can proceed together if they arise from the same facts.