Are Butterfly Knives Legal in Hawaii? (2026)
No — Butterfly Knives are illegal in Hawaii as of 2026.
Law changed in 2024: In May 2024, Hawaii repealed its long-standing ban on the possession and sale of butterfly knives.
Quick Answer
Butterfly knives are illegal to possess, sell, or manufacture in Hawaii.
What the Law Says
As of 2024, Hawaii law permits the ownership and open carry of butterfly knives. Concealed carry remains illegal.
— HRS § 134-53
| Category | Details |
|---|---|
| Possession | Illegal |
| Sale & Purchase | Illegal |
| Penalties | Misdemeanor or felony charges depending on circumstances. |
| Pending Legislation | None known |
In May 2024, Hawaii repealed its long-standing ban on the possession and sale of butterfly knives.
Enforcement Reality
Following a 2024 law change, butterfly knives are now legal to own and openly carry. However, concealed carry is still illegal and strictly enforced.
A common mistake is to carry a butterfly knife concealed, which remains a crime despite the recent legalization of ownership and open carry.
Local Exceptions
None identified. State law applies uniformly across Hawaii. Local ordinances may still vary — check with your city or county government for any additional rules.
Real-World Scenarios: Butterfly Knives in Hawaii
Can You Fly With Butterfly Knives Out of Hawaii?
Since butterfly knives is illegal in Hawaii, bringing it to the airport compounds your legal exposure. You're now dealing with both state law and federal jurisdiction. Don't do it.
Bottom Line
Butterfly Knives are illegal in Hawaii. Possession or use can result in criminal charges. Do not assume enforcement is lax — penalties are real. Consult a licensed attorney if you have specific questions.
Hawaii vs. the Rest of the US
Across the US, carrying a butterfly knife is fully legal in 39 states, restricted in 10, and illegal in 1. Hawaii falls in the ILLEGAL category.
View the full 50-state map →Reviewed by cross-referencing the cited state statute against current legislative databases and regulatory publications.
Sources & Verification
This page was reviewed by Ethan Harper by comparing the legal status against the cited state statute. AllowedHere is an informational resource and does not provide legal advice. Consult a licensed attorney for guidance specific to your situation.
Comprehensive Hawaii Legal Guides
Explore all related legal topics in Hawaii — statutes, penalties, and enforcement in one place.