Ohio Knife Laws
Ohio sets no blade length in statute, and since April 2021 switchblades, springblades and gravity knives may be made, sold and carried. Ohio has statewide preemption, strengthened again in 2026, so the rule is the same in every Ohio city. Only ballistic knives are banned.
This is not legal advice, and we are not lawyers. It is a plain reading of published summaries and the statutes they cite, kept current on a fixed schedule. Local ordinances are frequently stricter than state law and are not all captured here. Check the statute, and check your city, before you carry.
Recent change. 2026 – SB 58 strengthened the preemption statute and barred local possession fees.
Ohio knife law at a glance
| Concealed carry blade limit | No blade length stated in the statute. |
|---|---|
| Automatic and switchblade knives | The part of section 2923.20 that barred making, selling or furnishing a switchblade, springblade or gravity knife was removed on 12 April 2021. |
| Knife types banned outright | Ballistic knives. |
| Statewide preemption | Yes, effective 13 September 2022, and strengthened again in 2026 by SB 58. |
| The statutes | R.C. 2923.11, 2923.12, 2923.122, 2923.123, 2923.131 and 2923.20 — read them |
Source last revised 13 September 2022
Last known change 2026
Next review 15 November 2026
How fresh this is, and how you can tell
Two dates sit above, and they are not the same thing. Checked by us is the last time a person went back to the sources and confirmed this page still matches them. Source last revised is when the American Knife and Tool Institute last updated its own Ohio page. A 2021 revision date is not automatically wrong — it usually means nothing has changed since — but it does mean nobody had looked recently, and that is exactly the gap this page exists to close.
Crossing the Ohio state line
Knife law stops at the border and the next state does not have to agree with this one. If you drive, these are the states you are most likely to carry into, and what changes when you do.
| State | Automatic knives | Concealed blade limit |
|---|---|---|
| Pennsylvania | Legal | Concealment is not a factor. The offense turns on criminal intent. |
| West Virginia | Legal with conditions | Age is the line, not length, for adults. Under 21 you may not carry a concealed deadly weapon, and three and a half inches is the figure that applies to a dagger, dirk, poniard, stiletto or pocketknife. At 21 and over there is no concealment limit beyond place rules. |
| Kentucky | Legal with conditions | No blade length governs from 21, or with a concealed weapon license. Open carry is unrestricted. Kentucky courts have never drawn a clean line on what counts as an ordinary pocketknife, and one jury treated a five to six inch blade as a deadly weapon, so carry conservatively. |
| Indiana | Legal | No limits on concealed carry. |
| Michigan | Legal | No blade length governs. The restriction is on the type: daggers, dirks, stilettos and double-edged non-folding stabbing instruments may not be carried concealed. |
A knife that is lawful in your pocket at home can be unlawful the moment you cross, and nobody stops you at the line to tell you. The map for all fifty states covers the rest.
Common questions about Ohio knife laws
What size knife is legal to carry in Ohio?
No blade length stated in the statute.
Are switchblades legal in Ohio?
The part of section 2923.20 that barred making, selling or furnishing a switchblade, springblade or gravity knife was removed on 12 April 2021.
Which knives are banned outright in Ohio?
Ballistic knives.
Does Ohio have knife preemption?
Yes. Ohio has statewide preemption, which means a city cannot write its own stricter knife ordinance. One rule covers the whole state, and that is most of what preemption is worth.
Can I keep a knife in my car in Ohio?
Where a state has a concealed carry limit, a knife in a glovebox or a door pocket is generally treated as concealed. Read the concealed line above and apply it to the vehicle. If that line says concealment is not the issue in this state, the vehicle is not the issue either — but where you drive to still is, because schools and courthouses are barred everywhere.
Where this comes from
Two independent sources, cross-checked against each other, and the statute text where they disagree. The automatic knife column is the American Knife and Tool Institute’s state automatics table, checked against Knife Rights’ own switchblade legality table and their legislative update log. Everything on a state page is quoted or closely tracked from that state’s AKTI page, and we print the date AKTI last revised it so you can see for yourself how fresh the underlying work is.
Where a source is older than a change we know about, we say so on the page rather than quietly leaving the old answer up. That is the whole reason this is checked every two months.
Elsewhere on Popular EDC
The knife law map for all fifty states, the knife steel comparison chart for choosing the blade itself, and every Popular EDC tool in one place.
Data updated September 2026. Ohio knife law checked against the published sources on 15 September 2026, and due for review again on 15 November 2026.