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Hawaii Knife Laws

Strictly governed · read 2026-09-04

Hawaii governs edged steel closely, and more than one common pattern is barred outright. Automatics, balisongs and double-edged blades are barred outright.

Hawaii sets no statewide blade-length ceiling on concealed carry. That does not mean any blade may be concealed — intent, pattern and place still govern, and a court will read all three.

Open carry carries no statewide length ceiling in Hawaii. Sheathed, visible and plainly for work or display is the safest posture anywhere in the union.

Hawaii preempts local ordinance. One rule governs the whole province, and a city may not write a stricter one.

What Hawaii says, pattern by pattern

Automatic (switchblade)Barred
Balisong (butterfly)Barred
Gravity or ballistic knifeBarred
Dirk, stiletto or double-edgedBarred
Concealed blade-length ceilingNo statewide ceiling
Open-carry blade-length ceilingNo statewide ceiling
Cities may write stricter lawNo — statewide preemption

Can this house ship steel to Hawaii?

Shipping is possession, not carry — most provinces permit ownership of what they forbid on the street. Warborn Blades ships to buyers of age in the United States and Canada, and the counter refuses a barred road before a card is ever touched.

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Steel that is lawful to own in Hawaii

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This reading is drawn from published Hawaii statute as it stood on 2026-09-04. Law changes. It is offered freely as a reading of law and is not legal counsel. Where your carry matters, ask a lawyer in your own province.

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