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    The content on this page is for general educational purposes and does not constitute legal advice. Every legal situation is unique. For matters involving investigation, arrest, litigation, or formal proceedings, consult a qualified legal professional.

    Computer Crimes
    serious offence

    Online Defamation in Thailand

    Publishing defamatory content through computer systems, carrying enhanced penalties.

    Last updated: February 2026
    Legal Sections

    Computer Crime Act Section 14(1), Criminal Code Section 326-328

    Maximum Penalty

    Up to 5 years imprisonment and/or fine up to 100,000 THB (CCA penalties on top of Criminal Code penalties)

    Severity Level

    serious

    Definition

    Publishing defamatory content through computer systems, carrying enhanced penalties. Under Thai law, this offence is classified as a serious offence within the category of Computer Crimes.

    Elements of the Offence

    For a conviction, the prosecution must prove all of the following elements beyond reasonable doubt:

    1

    Publication of content through computer system

    2

    Content damages reputation of identified person

    3

    Publication to third parties

    4

    Knowledge of falsity or reckless disregard for truth

    Penalties

    Maximum Penalty

    Up to 5 years imprisonment and/or fine up to 100,000 THB (CCA penalties on top of Criminal Code penalties)

    Actual sentences depend on factors including the severity of the conduct, harm caused, prior convictions, and mitigating circumstances. Courts have discretion to impose lesser sentences within the statutory range.

    Possible Defences

    The following defences may be available depending on the circumstances:

    Truth (for matters of public interest)

    Fair comment on public matters

    Good faith expression of opinion

    Privileged communication

    Note: The availability of defences depends on specific facts. Professional legal advice is essential.

    For Foreigners

    Special Considerations for Foreign Nationals

    Online defamation is aggressively enforced. Foreigners have been arrested at airports for old social media posts. Content remains actionable for years after posting.

    When Legal Representation Matters

    If you are accused of online defamation or facing investigation, immediate legal representation is essential to protect your rights and build an effective defence.

    Anglo Siam Legal provides experienced legal services across Thailand for both Thai nationals and foreigners.

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