Indiana generally allows adults to own and carry common knives, including automatic knives. The state’s former switchblade restriction was repealed in 2013. Current knife-specific criminal provisions mainly address ballistic or projectile knives and knives intended as weapons on school property. [1]
Indiana does not impose one general statewide blade-length limit or a general open-versus-concealed distinction for ordinary adult knife carry.
What knives may you own in Indiana?
Indiana does not impose a general state ban on adult ownership of ordinary pocketknives, fixed blades, switchblades, automatic knives, OTF knives, gravity knives, or balisongs. The prior switchblade section is repealed. [1]
Ownership does not authorize threatening conduct, criminal use, possession on school property, or violation of private and local rules.
Which knife remains specifically prohibited?
Indiana Code § 35-47-5-2 prohibits manufacturing, possessing, displaying, offering, selling, lending, giving away, or purchasing a knife with a detachable blade that can be ejected from the handle as a projectile by gas, spring, or another device in the handle. [1]
This ballistic or projectile knife is different from an ordinary automatic knife whose blade stays attached to the handle.
May you carry a knife openly or concealed?
Indiana has no general statute imposing one blade-length limit on ordinary adult knife carry, and it does not generally require a permit merely because a lawful knife is concealed. Method of carry can still affect whether conduct appears threatening and whether a local, workplace, school, or venue rule applies.
Keep the knife closed or sheathed when not in use, and never display it to intimidate another person.
Are automatic knives and OTF knives legal?
Yes, Indiana repealed its former ban on switchblade knives in 2013. A conventional automatic or OTF knife is not prohibited merely because it opens automatically. The projectile-knife rule still applies when the blade detaches and is ejected from the handle. [1]
Federal commerce and shipping restrictions can still apply to switchblades.
What rules apply on school property?
Indiana Code § 35-47-5-2.5 prohibits reckless, knowing, or intentional possession of a covered knife on school property, a school bus, or a special-purpose bus. For this section, “knife” means a sharp-edged or sharp-pointed blade capable of inflicting cutting, stabbing, or tearing wounds and intended to be used as a weapon. It expressly includes daggers, dirks, poniards, stilettos, switchblades, gravity knives, and throwing stars. [1]
The statute contains exceptions for school-provided or school-authorized knives used for an authorized purpose and for a knife secured in a motor vehicle. School policies may still prohibit a broader range of tools. Practical rule: do not bring a knife to school without clear written authorization.
Can local rules be stricter?
Indiana’s broad state preemption is principally firearm-focused and does not create an equally comprehensive knife-specific rule. As a cautious practical conclusion, check current city and county codes for parks, public buildings, events, and other local restrictions.
What vehicle and private-property rules matter?
Indiana does not impose a general requirement that an adult’s lawful knife be locked in a vehicle trunk. Keep it closed or sheathed and secured against movement. The school-property exception specifically requires the knife to be secured in the vehicle.
Businesses, employers, universities, events, hospitals, and property owners may prohibit knives. Comply with security screening, posted rules, and requests to remove the knife or leave.
What air-travel rules apply?
The Transportation Security Administration prohibits knives in carry-on baggage except for plastic or round-bladed butter knives. Checked-baggage and airline requirements still apply. [2]
What should you verify before carrying?
- Whether the knife has a detachable blade that can be ejected as a projectile.
- Whether the destination is school property, a school bus, a courthouse, secure building, employer, venue, or private property with stricter rules.
- Whether a city or county ordinance applies.
- Whether the method of carry or behavior could be viewed as threatening.
- Whether federal law or another state’s law applies to the trip or transaction.
Conclusion
Indiana generally permits ordinary knives and automatic knives without a statewide blade-length limit or special concealed-carry license. Ballistic knives with ejectable blades remain prohibited, and weapon-oriented knives on school property are restricted. Local, private-property, federal, and conduct-based rules remain important.
Last reviewed: August 24, 2026.
This article provides general information, not legal advice. Knife laws and their interpretation can change and may depend on design, intent, carry method, location, local ordinance, and conduct. Verify current law through official sources or consult a qualified Indiana attorney about a specific situation.
Sources & References
- [1] Indiana Code Title 35, Article 47, Chapter 5. Projectile-knife prohibition, school-property knife rule, statutory definitions, exceptions, and repeal history.
- [2] Transportation Security Administration — Knives. Federal carry-on and checked-baggage guidance.
