A negative review of a clinic, a frustrated post in an expat group chat, a warning to others about a landlord or a business partner — for a foreign resident in Korea, any of these can turn into a criminal summons. Korea treats damage to a person’s reputation as a crime, not merely a civil wrong, and it does so even when what was said is entirely true. Foreign nationals are frequently caught off guard, because in much of the world a true statement ends a defamation argument. In Korea it does not.
That does not mean every critical post is a crime. Korean defamation law is precisely structured, with separate offences, different penalties, and a narrow public-interest exception, and the result in a real case turns on details that are easy to miss. This guide explains that framework so you can understand where your own situation may fall — whether you have received a complaint or are weighing whether to post at all.
In short: defamation in Korea (명예훼손) can be committed by stating a true fact in public, not only a false one (Criminal Act Article 307). The same conduct online falls under the Information and Communications Network Act (Article 70) and is punished more heavily, but only where a separate “intent to defame” is proven. A purely insulting remark with no factual claim is the distinct offence of insult (모욕, Article 311). Truth made “solely in the public interest” is exempt (Article 310), but that exception is narrow. For a foreign national, a conviction can also bear on residence status.
Why Korea’s defamation law surprises foreign nationals
The feature that catches people out is simple to state: under Criminal Act Article 307(1), publicly asserting a fact that lowers another person’s social reputation can be an offence even if the fact is true. Stating a false fact (Article 307(2)) is punished more severely, but truth is not, by itself, a defence to the basic offence.
There is a relief valve, but a narrow one. Article 310 provides that a true statement made “solely in the public interest” is not punished. Korean courts apply this to matters of genuine public concern — the conduct of public officials, corruption, consumer safety affecting many people — far more readily than to private quarrels. A post whose main purpose is to embarrass, pressure, or take revenge on a particular individual will struggle to qualify, even if every word of it is accurate. Whether a statement is “in the public interest” is a judgment the court makes by weighing its content, purpose, audience, and the harm caused, which is why two superficially similar posts can end very differently.
The offences and what they carry
Reputation offences in Korea are spread across two statutes. The Criminal Act governs defamation and insult generally; the Information and Communications Network Act governs the same conduct when it takes place online, where reach is wider and the penalties are higher. The table below sets out the statutory maximums.
| Offence | Statute | Statutory maximum |
|---|---|---|
| Defamation — true fact | Criminal Act Art. 307(1) | Up to 2 years’ imprisonment, or a fine up to 5 million won |
| Defamation — false fact | Criminal Act Art. 307(2) | Up to 5 years’ imprisonment, or a fine up to 10 million won |
| Online defamation — true fact | Network Act Art. 70(1) | Up to 3 years’ imprisonment, or a fine up to 30 million won |
| Online defamation — false fact | Network Act Art. 70(2) | Up to 7 years’ imprisonment, or a fine up to 50 million won |
| Insult (no factual claim) | Criminal Act Art. 311 | Up to 1 year’s imprisonment, or a fine up to 2 million won |
| Defamation of the deceased — false fact only | Criminal Act Art. 308 | Up to 2 years’ imprisonment, or a fine up to 5 million won |
The pattern is worth noticing: the same words carry a heavier ceiling once they are posted online, and a false statement is treated far more seriously than a true one. The chart below shows the maximum prison exposure rising across the offences.
1 yr
2 yrs
3 yrs
5 yrs
7 yrs
Statutory maximum imprisonment. The penalty a court actually imposes is usually far lower and depends on the facts; many first cases resolve as fines, but that is not guaranteed.
These figures are ceilings, not predictions. What a court imposes depends on the content, the harm, whether the matter was resolved with the other party, and the offender’s circumstances. The point for a newcomer is only that these are real criminal offences with real exposure, not a formality that disappears once a post is deleted.
“Intent to defame” — the decisive issue online
Because so many disputes now happen on social media and community sites, the Network Act offence is the one foreign residents most often face — and it has a requirement that frequently decides the case. Beyond showing that a post lowered someone’s reputation, the prosecution must prove a separate “intent to defame” (비방할 목적). The two are not the same thing, and one does not follow automatically from the other.
Korea’s Supreme Court has been explicit on this point. In a decision of 4 January 2024 (Supreme Court Case No. 2022도699), the Court held that, for online defamation under Article 70, the intent to defame is a separate element from the fact that a statement damages reputation, that the two must each be established, and that the burden of proving every element lies with the prosecution. The Court also explained that the intent to defame stands in opposition to a public-interest purpose: where a statement is made mainly in the public interest, the intent to defame is, absent special circumstances, denied — even if some incidental private motive is also present. Whether a given post was made to inform or to wound is assessed from its content, tone, audience, and the relationship between the parties.
This is a meaningful protection, but not a safe harbour to be claimed casually. The same court that articulated the standard has also upheld convictions where the real purpose was found to be private pressure dressed up as public concern. Which side of the line a particular post sits on is exactly the kind of judgment that is difficult to make about one’s own writing, and easy to get wrong.
Why the victim’s wishes shape the case
Reputation offences in Korea are unusual in how much weight they give to the person who was harmed. Ordinary defamation and online defamation are “no-punishment-against-will” offences: if the victim clearly expresses that they do not want the offender punished, prosecution cannot proceed against that wish. Insult and defamation of the deceased go further still — they are “complaint” offences, meaning they cannot be prosecuted at all unless the victim files a formal complaint.
In practice this means the posture of the other party can change the entire trajectory of a case, and a resolution with them can be significant. But the legal effect of a withdrawal or a complaint turns on technical timing and wording that are not obvious from the outside, and a settlement reached at the wrong stage, or expressed too loosely, may not produce the outcome a person assumes. This is a structural feature to understand early, not a procedure to navigate alone.
Why a reputation charge weighs more heavily on foreign nationals
The same charge lands differently on a foreign resident. The complaint, the investigation, and the first interview — where an account of an online dispute, often spanning months of posts and replies, is first recorded — are conducted in Korean, and the file that results follows the case to its conclusion. Context that is obvious to the writer can be lost in translation, and screenshots taken out of sequence can make an exchange look worse than it was.
Residence status adds a second layer. A defamation or insult conviction is a criminal conviction, and Korean immigration authorities have discretion to weigh criminal matters when they review a visa extension, a change of status, or continued residence. This is not automatic — the outcome depends on the sentence, the visa type, and personal circumstances — but it is a genuine consideration that is assessed separately from the criminal case itself. For a foreign national, in other words, the cost of a post that seemed minor can extend well beyond a fine.
Online conduct also blurs into neighbouring offences. Repeated unwanted messages or persistent online contact can raise separate questions under Korea’s stalking law; our guide to stalking charges and their consequences for foreigners covers that overlap. For how criminal cases against foreign residents proceed more generally, see our guide to criminal defence for foreigners in Korea.
Where these cases are actually decided
A defamation case rarely turns on a single line of text. Whether a statement is fact or opinion, whether it is true and made in the public interest, whether an intent to defame can be shown, and what the harmed party now wants each pull the result in a different direction — and these judgments are made early, often at the first interview, conducted in Korean and recorded as part of the file. A complaint is not a conviction, and many disputes are over-charged by an angry counterparty; but the direction of a case is easier to shape before that first account is given than to repair afterwards.
If you have received a complaint or a summons, or are unsure whether something you intend to post could expose you, you are welcome to send the basic facts through KakaoTalk. Initial inquiries in English are handled directly, so that the direction of your situation can be assessed before the first interview rather than after.
Frequently Asked Questions
Is it defamation in Korea even if what I posted is true?
It can be. Unlike many common-law countries, Korea punishes defamation even where the statement is true: Criminal Act Article 307(1) covers stating a fact in public that lowers another person’s reputation. There is a narrow exception in Article 310 — if the statement is true and made solely in the public interest, it is not punished — but private disputes, personal grievances, and revenge posts rarely qualify. Truth, on its own, is not a complete defence.
I left a negative review or vented in a group chat. Could that be a crime in Korea?
Possibly. Posts on review sites, social media, or community boards can fall under the Information and Communications Network Act (Article 70), which carries heavier penalties than ordinary defamation. But that offence requires a separate “intent to defame” beyond simply lowering someone’s reputation, and an honest consumer review or genuine public-interest warning may negate it. Whether a particular post crosses the line is highly fact-dependent. A purely abusive remark with no factual assertion may instead be charged as insult (모욕), a separate and lower-level offence.
Can a defamation or insult conviction affect my visa or residence status in Korea?
It can. Korean immigration authorities have discretion to consider criminal matters when reviewing visa extensions, changes of status, or continued residence. A conviction does not lead to automatic loss of status, and the outcome depends on the sentence, the visa type, and personal circumstances — but the immigration side is assessed separately from the criminal case and is best considered from the start rather than after it ends.
The other side said they will drop it if we settle. Does that end the case?
It may matter a great deal, because of how these offences are classified. Ordinary and online defamation cannot be prosecuted against the victim’s clearly expressed wish (a “no-punishment-against-will” offence), while insult and defamation of the deceased require the victim’s formal complaint to proceed at all. How and when that wish or complaint takes legal effect is technical and fact-specific, and a settlement reached at the wrong moment, or worded loosely, may not have the effect a person expects. This is a point to get right with counsel rather than to improvise.
About the author
Pyoung-ho Kim is the Managing Attorney at Yeohae Law Firm. He passed the Korean Judicial Examination and completed the 43rd term of the Judicial Research and Training Institute, and received the Outstanding Lawyer Award in 2021. He has handled more than 500 cases since 2014, advising foreign residents on criminal and civil matters in Korea.
This article provides general legal information and is not legal advice. The outcome of any case depends on its specific facts. Yeohae Law Firm — legal services for foreign residents in Korea.