Understanding the Legal Landscape of Pocket Knives in Maine

Navigating pocket knife laws in Maine is straightforward compared to many states, but there are important distinctions between open and concealed carry, as well as the types of knives regulated. Here’s a clear guide to understanding the legal landscape of pocket knives in Maine as of 2025:

Ownership and Types of Knives

Legal to Own: Maine law permits ownership of virtually all types of knives, including pocket knives, automatic (switchblade) knives, butterfly knives, and OTF (Out-The-Front) knives. The ban on automatic knives was repealed in 2015, so these are now legal to own and carry openly or concealed, provided they are not classified as “dangerous or deadly weapons”.
No Blade Length Limit: There is no statewide restriction on blade length for pocket knives or other knives.

Carrying Pocket Knives

Open Carry

Generally Legal: You may openly carry any type of knife, including pocket knives, in Maine. This includes carrying on your belt, in your pocket (if visible), or otherwise not concealed.
Exception: Even when carried openly, knives should not be displayed “in a threatening manner.” Doing so could result in criminal charges.

Concealed Carry

Pocket Knives: Most standard pocket knives (those not designed for use as a weapon) may be carried concealed without restriction.
Restricted Knives: It is illegal to carry concealed any knife classified as a “bowie knife, dirk, stiletto, or other dangerous or deadly weapon usually employed in the attack on or defense of a person.” Violating this law is a Class D crime, punishable by up to one year in jail and a $2,000 fine.
Hunting, Fishing, or Trapping Exception: The concealed carry ban does not apply to knives used for hunting, fishing, or trapping, regardless of type.

Prohibited Places

Schools: Knives are prohibited on school grounds, regardless of type or carry method.
Courthouses and Government Buildings: Carrying knives is banned in court facilities and buildings under the control of the Maine Judicial Branch.

Statewide Preemption and Local Laws

No Statewide Preemption: Maine does not have a law preventing local governments from enacting their own knife ordinances. Some cities (like Augusta, Bangor, and Lewiston) may have additional restrictions, so always check local laws before carrying a knife in these areas.

Summary Table

Action/Location	Pocket Knife Legal?	Notes
Own any pocket knife	Yes	Includes automatics and butterfly knives
Open carry	Yes	Any knife, unless displayed threateningly
Concealed carry	Yes (most types)	Illegal if classified as a “dangerous or deadly weapon”; hunting/fishing/trapping exception applies
Schools/courthouses	No	Knives prohibited
Local ordinances	Varies	Check city/county rules

Key Takeaways

Open carry of pocket knives is legal statewide.
Concealed carry is legal for most pocket knives, but not for those classified as “dangerous or deadly weapons” (bowie knives, dirks, stilettos, etc.), unless used for hunting, fishing, or trapping.
No blade length restrictions for pocket knives.
Knives are banned in schools and court facilities.
Local laws may be stricter—check before carrying in cities.

Always use knives responsibly and avoid displaying them in a threatening manner to stay within the law.

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