In the UK, the possession of a samurai sword is legal but subject to certain restrictions. As of the Offensive Weapons Act 2019, it is illegal to possess a samurai sword with a curved blade over 50 centimeters (approximately 19.7 inches) in length in a public place without a valid reason. This includes carrying or displaying the sword in public areas.

However, you do not need a specific license to possess a samurai sword in a private setting, such as in your home or as part of a collection, as long as you have a legitimate reason for ownership. Legitimate reasons may include historical or cultural interest, martial arts practice, theatrical performances, or other lawful purposes.

It's important to note that even for private possession, responsible ownership and safe storage of the samurai sword are required. It should be stored securely and out of reach of unauthorized individuals, particularly minors.

If you are purchasing or selling a samurai sword in the UK, it is advisable to engage with reputable dealers or sellers who are knowledgeable about the legal requirements and can provide guidance on compliance with the applicable laws.

Keep in mind that regulations can change, and it's always a good idea to consult official government sources or legal professionals to obtain accurate and up-to-date information regarding the possession and ownership of samurai swords in the UK.