Defamation is not a federal crime. There is no federal statute that makes it illegal to damage someone’s reputation with a false statement, and federal prosecutors have no authority to bring defamation charges. It is handled as a civil matter under state law: the person harmed files a private lawsuit and asks a court to award money damages. A few federal statutes and doctrines touch the edges of defamation, but none of them turn it into a crime the United States can prosecute.
Defamation Is a Civil Wrong, Not a Crime
Defamation is a tort, meaning a private wrong between two people. The injured person (the plaintiff) sues the person who made the false statement (the defendant). The government is not a party. Nobody goes to jail. The remedy is money, and the point is to compensate the plaintiff rather than punish on the public’s behalf.
The claim splits into two forms. Libel covers false statements fixed in a medium like a written article, a social media post, or a broadcast. Slander covers spoken statements that aren’t recorded or published. Some states apply different rules for proving harm depending on which form applies.
To win, a plaintiff generally has to prove four things: a false statement of fact (not opinion), publication to at least one third party, fault on the defendant’s part, and actual harm to reputation. Certain categories — falsely accusing someone of a crime, a loathsome disease, sexual misconduct, or conduct that damages their trade — are treated as defamation per se, where harm is presumed without specific proof.
State law controls every piece of this. What qualifies as defamation, what defenses apply, what damages are available, and how long you have to sue all depend on the state. Filing deadlines run from as short as six months for slander in at least one state to three years in a handful of others, with most states falling in the one-to-two-year range. The clock starts when the statement is first published, not when the plaintiff learns about it, and missing the deadline ends the claim regardless of its strength.
Federal Crimes That Can Involve False Statements
Spreading false statements can sometimes be part of conduct that violates federal criminal law, but in those cases the charge is not defamation. It is a separate federal crime where the false statements happen to be the tool.
The most common overlap is wire fraud. Under 18 U.S.C. § 1343, anyone who uses interstate electronic communications to carry out a scheme to defraud faces up to 20 years in prison. If someone spreads reputation-destroying lies online as part of a deliberate scheme to steal money or property, those statements become evidence of the fraud rather than the basis of a defamation charge.1Office of the Law Revision Counsel. 18 U.S.C. 1343 – Fraud by Wire, Radio, or Television
Federal cyberstalking law can also come into play. Under 18 U.S.C. § 2261A, using the internet or other electronic communications to engage in a course of conduct that places someone in reasonable fear of serious bodily injury, or causes substantial emotional distress, is a federal crime when done with intent to harass or intimidate. A sustained campaign of false accusations online could support a cyberstalking charge if the other elements are met. A single defamatory statement would not qualify on its own.2Office of the Law Revision Counsel. 18 USC 2261A – Stalking
In both situations, the defamation itself still isn’t the crime. The crime is the fraud or the stalking course of conduct, and the false statements are evidence.
When a Defamation Case Can End Up in Federal Court
Civil defamation lawsuits are almost always filed in state court because state law governs them. One route puts a civil defamation case in a federal courthouse: diversity jurisdiction. Under 28 U.S.C. § 1332, a federal court can hear a case between citizens of different states when the amount in controversy exceeds $75,000.3Office of the Law Revision Counsel. 28 U.S. Code 1332 – Diversity of Citizenship; Amount in Controversy Even then, the federal judge applies the defamation law of the relevant state. The courthouse changes; the rules don’t. And it is still a civil lawsuit for money, not a criminal prosecution.
Congress has also passed a federal statute directly about defamation, but it isn’t a criminal law either. The SPEECH Act (Securing the Protection of our Enduring and Established Constitutional Heritage Act) prevents U.S. courts from enforcing foreign defamation judgments unless the foreign country’s law provides at least as much free speech protection as the First Amendment. It exists because some countries’ defamation standards are far more plaintiff-friendly, and people were suing overseas to work around American protections.4Office of the Law Revision Counsel. 28 USC 4101 – Definitions
Can You Sue the Federal Government for Defamation?
No. The Federal Tort Claims Act generally lets people sue the United States for torts committed by federal employees acting within the scope of their duties, but it carves out defamation. Under 28 U.S.C. § 2680(h), the government keeps sovereign immunity for any claim arising out of libel or slander.5Office of the Law Revision Counsel. 28 U.S. Code 2680 – Exceptions If a federal employee defames you on the job, the United States cannot be sued over it. You may in some circumstances be able to pursue the individual employee, but the government itself is off limits for defamation claims.
State Criminal Defamation Laws
Defamation isn’t a federal crime, but it is still a crime in a small number of states. Roughly a dozen states have criminal defamation or criminal libel statutes on the books, making it a misdemeanor to intentionally publish a false statement that damages someone’s reputation. Penalties range from fines of a few hundred dollars up to, in the most severe statutes, several years in jail.
In practice these laws are rarely used. The Supreme Court held in Garrison v. Louisiana that criminal defamation statutes are subject to the same First Amendment constraints as civil defamation claims. A criminal prosecution for defamation of a public official requires proof of actual malice, and even cases involving private individuals demand a high showing of intent.6Justia. Garrison v. Louisiana Many courts view these statutes with deep skepticism, prosecutors rarely file charges when the constitutional hurdles are so steep, and the trend has been toward repeal. The laws persist in a shrinking number of states.
So the short answer stays short. Federally, defamation is a civil matter, pursued by the person who was harmed and governed by the law of the state where the suit is brought. The federal system touches it only around the edges: through separate crimes like wire fraud and cyberstalking that can involve false statements, through diversity jurisdiction that moves certain civil cases to federal court, and through the SPEECH Act that limits enforcement of foreign judgments. The only criminal exposure for defamation itself comes from the handful of state statutes that still criminalize it, and even those are hemmed in by the First Amendment.