Legal note: This page is a CJRB educational summary, not legal advice. Oregon knife law can change, and local, federal, school, courthouse, airport, workplace, event, public-property, private-property, and transit rules may add restrictions. Use the source links below as a starting point and consult a qualified attorney for legal advice.
Last checked: July 24, 2026 · Primary sources: ORS 166.240 plus related official/local sources listed below
Oregon Knife Law Snapshot
Short version: Oregon restricts concealed carry of spring/centrifugal opening knives, dirks, daggers, and similar instruments. Portland park rules add a 3.5-inch and spring/centrifugal knife restriction in parks.
Concealed carry of these knives is restricted.
Concealed carry is restricted.
Felons face additional knife restrictions.
Portland park code restricts certain knives including blades over 3.5 inches.
Can You Carry a Knife in Oregon?
| Situation | Plain-English summary | Status | Source |
|---|---|---|---|
| Ordinary pocketknife carried openly | Generally lower risk under the reviewed state concealed-weapons statute, but local and place rules matter. | Generally allowed | ORS 166.240 |
| Concealed spring/centrifugal opening knife | Oregon restricts concealed carry of a knife having a blade that projects or swings into position by force of a spring or centrifugal force. | Restricted | ORS 166.240 |
| Concealed dirk or dagger | Concealed carry of dirks, daggers, and similar instruments is restricted. | Restricted | ORS 166.240 |
| Felon possession of restricted weapon | ORS 166.270 restricts felons from possessing spring/centrifugal knives and from carrying dirks, daggers, or stilettos. | Restricted | ORS 166.270 |
| Portland park possession | Portland parks restrict spring/centrifugal knives, knives longer than 3.5 inches, dirks, daggers, swords, straight razors, hatchets, and similar weapons. | Local park restriction | Portland Code 20.12.050 |
Knife Type Notes
Use this section as a practical EDC check. A knife can be legal to own but still risky to carry because of concealment, location, age, conduct, or local rules.
| Knife type | State summary | Carry risk |
|---|---|---|
| Pocket knives | Lower risk when openly carried and not spring/centrifugal. | Medium |
| Switchblades / automatics | High caution concealed due to spring-opening language. | High concealed |
| Balisongs | Could raise centrifugal-opening concerns when concealed. | High caution |
| Fixed blades | Concealed dirk/dagger-style fixed blades are high risk. | High concealed |
Portland Rules
Local and place-based rules are often where EDC users get surprised. Check the exact city, campus, venue, transit system, workplace, and private-property rules before carrying.
| Rule area | What to know | Status | Source |
|---|---|---|---|
| Portland parks | Portland Code 20.12.050 restricts many weapons in parks, including knives over 3.5 inches and spring/centrifugal knives. | Caution | Portland Code 20.12.050 |
| Portland event/public property rules | City event rules may also prohibit items capable of causing bodily harm. | Caution | Portland Code Title 20 |
Practical EDC Checklist
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01Start with the knife type: Confirm whether the knife is ordinary utility carry or a listed/restricted weapon category.
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02Check concealment: Some states treat open and concealed carry differently, and some cities add local concealed-carry limits.
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03Check the place: Schools, court facilities, government buildings, parks, public transit, airports, and private venues often have stricter rules.
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04Avoid threatening conduct: Displaying, drawing, or carrying a knife as a weapon can change the legal analysis quickly.
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05Verify local law: State law is only the first layer unless the state has strong knife preemption.
Relevant Legal Sources
| Source | Why it matters | Status | Citation |
|---|---|---|---|
| ORS 166.240 | Carrying concealed weapons. | Source | ORS 166.240 |
| ORS chapter 166 | Official Oregon weapons chapter, including ORS 166.270. | Source | ORS chapter 166 |
| Portland Code 20.12.050 | Possession of weapons in Portland parks. | Source | Portland Code 20.12.050 |
| Portland Code Title 20 | Portland parks code and event prohibited items. | Source | Portland Code Title 20 |
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