What Counts as Defamation Under Thai Law

In many countries defamation is a civil matter — you sue for damages. In Thailand it can also be a criminal offence, and that surprises many foreign residents. A heated online review, a social media post, or a public accusation can lead not just to a lawsuit but to a criminal complaint. Knowing what actually counts as defamatory is the best way to stay on the right side of it.

What Makes a Statement Defamatory
Broadly, a statement is defamatory when it attributes something to another person, is communicated to a third party, and is likely to harm that person's reputation or expose them to hatred or contempt. Three things matter: an identifiable person, a third party who hears or sees it, and damage to reputation.

Examples of Statements That Can Be Defamatory
Accusing someone of a crime or dishonesty
Claiming a person or business is corrupt, fraudulent, or untrustworthy
Attacking someone's professional competence or moral character
Damaging allegations posted in reviews, comments, or on social media

The "Third Party" Requirement
Defamation requires that the statement reaches someone other than the person it's about. Saying something insulting directly to a person, with no one else present, is generally not defamation — though it may raise other issues.

"But It's True" — Why That May Not Save You
This is the point foreigners most often get wrong. In Thailand, proving a statement is true is not always a complete defence. Where the matter is purely private and disclosing it serves no legitimate public benefit, a true statement can still be treated as defamatory. Truth helps, but it is not an automatic shield.

Online Statements Carry Extra Risk
Defamation through publication — websites, social media, and online reviews — is treated more seriously than a private remark, and online statements can also fall under the Computer Crime Act, adding a further layer of exposure.

What Is Usually Not Defamation
Statements made in good faith are generally protected — fair comment or honest opinion on a matter of public interest, statements made to protect your own legitimate rights, and fair reporting of public proceedings. The line between fair comment and defamation, though, is often exactly where disputes arise.

The Practical Takeaway
Before you post a review, make a public accusation, or respond to one, it's worth knowing where the line sits. And if you've received a defamation complaint — or believe someone has defamed you — early advice makes a real difference.

Facing a defamation matter, on either side? Our team handles these cases regularly and can advise on your position.