Yes, weed is illegal in Vietnam. Cannabis is treated as a narcotic in the same regulatory category as heroin and cocaine, with no exceptions for medical or recreational use. Personal use draws an administrative fine of roughly $38 to $76, but possession above personal-use quantities is a criminal offense carrying two to twenty years in prison, and trafficking 75 kilograms or more can bring the death penalty. The law applies the same way to foreign visitors as to Vietnamese citizens.
How the Law Classifies Cannabis
Vietnamese law makes no distinction between cannabis and harder drugs. The prohibition covers every part of the plant, including leaves, roots, stems, branches, flowers, and fruits, along with any derivative or extract. Offenses are prosecuted under the general narcotics framework in the Penal Code, with the quantity thresholds that trigger each penalty set drug by drug.
Fines for Using Cannabis
Simple use is handled as an administrative violation rather than a criminal one. Under Decree 144/2021, the fine for illegally using narcotics is VND 1,000,000 to VND 2,000,000, roughly $38 to $76 at current exchange rates.1LuatVietnam. Decree No 144/2021/ND-CP Providing Penalties for Administrative Violations Against Regulations on Security
That low fine is not the whole picture. If authorities determine that you are addicted, you can be placed into compulsory rehabilitation for up to 24 months. And a positive drug test during a police check can escalate quickly: once officers search you and find cannabis, the matter shifts from an administrative fine to a criminal possession case.
Prison Time for Possession
Once the quantity exceeds personal-use amounts, Article 249 of the Penal Code applies, and the sentences climb steeply with weight:
- 1 to 500 grams: up to VND 50,000,000 in fines (roughly $1,900) and two to seven years in prison.
- Over 500 grams: up to 20 years in prison or life imprisonment.
Courts can add supplemental penalties on top of the prison sentence, including further fines between VND 5,000,000 and VND 500,000,000 and confiscation of property.2BWC Implementation Support Unit. Vietnam Penal Code – Law No 100/2015/QH13
Trafficking and the Death Penalty
Trafficking is governed by Article 251, and the penalties at the top end are among the harshest in Southeast Asia. The death penalty applies when trafficking involves 75 kilograms or more of cannabis plant material. Below that threshold, trafficking still carries sentences up to 20 years or life for large quantities.2BWC Implementation Support Unit. Vietnam Penal Code – Law No 100/2015/QH13
You may see claims online that the death-penalty threshold for cannabis is 600 grams. That figure applies to dried opium poppy, not cannabis. The distinction is real, but it should not be read as reassurance. Trafficking even small amounts of cannabis still means multi-year prison sentences.
Edibles, Oils, Vapes, and CBD
The prohibition is not limited to dried flower. Any product containing THC is covered: edibles, oils, resins, wax concentrates, and vape cartridges all fall within the narcotics laws. Vietnam has also moved to ban e-cigarettes and heated tobacco products outright. Producing, transporting, or selling prohibited vape products can draw fines of VND 100,000,000 to VND 1,000,000,000 (roughly $3,800 to $38,000) or one to five years in prison, and a THC cartridge would face both prohibitions at once.
CBD oil from industrial hemp is sold openly and appears to be tolerated, since hemp contains only trace THC. There is no clearly published government regulation setting a specific THC threshold that makes a CBD product legal, however. If a product you are carrying contains more than trace THC, or is derived from cannabis rather than hemp, it falls under the narcotics prohibition, and the burden of proving otherwise sits with you.
How Raids and Testing Work
Vietnamese police run regular raids on bars, nightclubs, and entertainment venues, especially in Ho Chi Minh City and Hanoi. During these operations, everyone present can be subjected to on-the-spot urine testing. In one raid on three Ho Chi Minh City bars, 247 people were arrested and 186 tested positive. Being in the venue is enough to be swept up.
A positive urine test alone can trigger the administrative fine for drug use. If officers then search you and find cannabis, the case moves from an administrative matter to a criminal investigation. That is how most foreigners get into serious trouble: a night out turns into a possession charge.
At airports and land borders, customs screening is thorough. Bringing any cannabis product into the country, including edibles or vape cartridges, is treated as drug smuggling rather than ordinary possession.
Compulsory Rehabilitation
Alongside criminal penalties, Vietnam uses a rehabilitation system. When authorities identify someone as drug-addicted, they can order compulsory treatment at a government facility for up to 24 months. Voluntary rehabilitation lasts up to 12 months. Legislators have been debating amendments to the Law on Drug Prevention and Control that would extend the compulsory period to 36 months for repeat cases. These government centers have drawn scrutiny from international organizations over conditions and the involuntary nature of detention.
What Foreign Nationals Face
Foreign visitors are subject to every penalty a Vietnamese citizen faces, plus additional consequences. A drug conviction can lead to deportation under Decree 59/2026, which took effect in April 2026. Deportation follows your sentence; it does not replace it.
The pre-trial phase is where the Vietnamese system hits hardest. Drug investigations can stretch on for years, and you may be held in detention the entire time without formal charges or explanation.3U.S. Embassy & Consulate in Vietnam. Arrest or Detention of a U.S. Citizen in Vietnam
If you are arrested, you have the right to ask police to notify your embassy or consulate. In practice, Vietnamese authorities are known to delay that notification and to restrict consular access for several weeks. The U.S. Embassy warns that even after notification, actually reaching a detained citizen can take weeks of back-and-forth with Vietnamese officials.3U.S. Embassy & Consulate in Vietnam. Arrest or Detention of a U.S. Citizen in Vietnam
Your embassy can visit you, help you find a local attorney, and monitor your case. It cannot intervene in the Vietnamese legal process or get you released, and there is no mechanism for transferring your case to your home country’s courts. You will be tried under Vietnamese law, in Vietnamese courts, with Vietnamese legal representation.