Is Butterfly Knife Legal in Kentucky? (2026)

Key facts

Status

Legal

Permit required

No

Jurisdiction

Kentucky

Last reviewed

2026-04-09

Butterfly Knife laws in Kentucky

In Kentucky, butterfly knives, also known as balisongs, are generally permitted for possession, open carry, and sale. There is no specific state law explicitly prohibiting butterfly knives. However, individuals should be aware that Kentucky Revised Statutes Chapter 527, specifically KRS 527.020, addresses switchblade knives and other similar weapons. While butterfly knives are not explicitly listed as prohibited in the same manner as some other weapons, their spring-loaded or gravity-assisted opening mechanisms could potentially lead to them being classified and regulated similarly to switchblade knives under certain interpretations of the law, especially concerning concealed carry. While state law does not carry specific penalties solely for butterfly knife possession, any violations related to their carrying or use could fall under broader weapon offense statutes. For instance, KRS 527.020 makes it unlawful to possess, manufacture, sell, or transport any switchblade knife. If a butterfly knife is deemed a switchblade under legal scrutiny, possession could be considered a Class A misdemeanor, which carries a potential penalty of up to one year in jail and a fine of up to $500. More severe penalties could apply if the butterfly knife is used in the commission of another crime. It is crucial to consult current local ordinances, as some municipalities might have stricter regulations on the possession or carrying of such knives. Travelers carrying butterfly knives should exercise extreme caution. While state law may permit possession, federal regulations, such as those enforced by the Transportation Security Administration (TSA), categorically prohibit butterfly knives from being carried on commercial aircraft in carry-on luggage. They may be permitted in checked baggage if properly secured and declared according to airline and TSA guidelines. Residents should also be mindful of the distinction between open and concealed carry. While open carry of a butterfly knife might be permissible under state law, concealed carry is often subject to more stringent regulations and may require a Kentucky concealed carry permit, and even then, certain types of knives may be prohibited from concealed carry.

Frequently asked questions

Is butterfly knife legal in Kentucky for travelers?

For travelers visiting Kentucky, butterfly knife is currently legal. In Kentucky, butterfly knives, also known as balisongs, are generally permitted for possession, open carry, and sale. There is no specific state law explicitly prohibiting butterfly knives. However, individuals should be aware that Kentucky Revised Statutes Chapter 527, specifically KRS 527.020, addresses switchblade knives and other similar weapons. While butterfly knives are not explicitly listed as prohibited in the same manner as some other weapons, their spring-loaded or gravity-assisted opening mechanisms could potentially lead to them being classified and regulated similarly to switchblade knives under certain interpretations of the law, especially concerning concealed carry. While state law does not carry specific penalties solely for butterfly knife possession, any violations related to their carrying or use could fall under broader weapon offense statutes. For instance, KRS 527.020 makes it unlawful to possess, manufacture, sell, or transport any switchblade knife. If a butterfly knife is deemed a switchblade under legal scrutiny, possession could be considered a Class A misdemeanor, which carries a potential penalty of up to one year in jail and a fine of up to $500. More severe penalties could apply if the butterfly knife is used in the commission of another crime. It is crucial to consult current local ordinances, as some municipalities might have stricter regulations on the possession or carrying of such knives. Travelers carrying butterfly knives should exercise extreme caution. While state law may permit possession, federal regulations, such as those enforced by the Transportation Security Administration (TSA), categorically prohibit butterfly knives from being carried on commercial aircraft in carry-on luggage. They may be permitted in checked baggage if properly secured and declared according to airline and TSA guidelines. Residents should also be mindful of the distinction between open and concealed carry. While open carry of a butterfly knife might be permissible under state law, concealed carry is often subject to more stringent regulations and may require a Kentucky concealed carry permit, and even then, certain types of knives may be prohibited from concealed carry.

Do I need a permit for butterfly knife in Kentucky?

Kentucky does not specifically require a permit for butterfly knife, though general regulations apply.

Can I transport butterfly knife through Kentucky?

Transport laws for butterfly knife in Kentucky depend on the specific item and your route. Generally, transport is allowed if you comply with state regulations. Always check states you pass through.

What are the penalties for butterfly knife violations in Kentucky?

Penalties for butterfly knife violations in Kentucky vary based on the specific offense. Always verify current laws before traveling.