No, butterfly knives (balisongs) are illegal in Thailand under the Arms Act B.E. 2490 (1947), as amended in 2019, which classifies them as prohibited weapons. Possession, import, or sale risks imprisonment up to 10 years or fines up to 200,000 THB. Recent 2026 enforcement directives by the Royal Thai Police’s Crime Suppression Division target their circulation in tourist hubs.
Key Regulations for Butterfly Knives (Balisongs) in Thailand
- Prohibited Classification: Balisongs are explicitly listed under Section 5(3) of the Arms Act as “dangerous weapons,” alongside switchblades and knuckle dusters.
- Penalties for Possession: Unlicensed ownership incurs up to 5 years’ imprisonment or 100,000 THB fines; trafficking escalates to 10 years or 200,000 THB. Confiscation is mandatory.
- Border Enforcement: Customs (under the Customs Act B.E. 2560) and police conduct routine checks at airports and land crossings, particularly targeting mail-order shipments.