Oregon LLC Business Name Rules
Learn the rules for naming an LLC in Oregon — required designators, name availability, assumed business names (DBAs), and how to reserve your name with the Oregon Secretary of State.
Bizee Editorial Staff
Editorial Team
Oregon LLC naming requirements at a glance
Filing fee: [STATE_FEE]
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State agency: Oregon Secretary of State, Corporations Division
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Oregon LLC naming rules
Oregon LLC names must include "Limited Liability Company," "LLC," or "L.L.C." as a designator, be distinguishable from all active business names on the Oregon Secretary of State's registry, and avoid designators reserved for other entity types like corporations or limited partnerships. Oregon also has specific rules about what counts as distinguishable — punctuation, capitalization, and entity identifiers don't make 2 names different on their own.
Required LLC designator
Every Oregon LLC name must include one of the following designators: "Limited Liability Company," "LLC," or "L.L.C." — with or without periods. The designator needs to appear as a distinct element of the name, separated by a space or comma, not embedded inside another word.
Oregon also prohibits LLC names from using designators that belong to other entity types. Words like "Corporation," "Corp.," "Incorporated," "Inc.," "Limited Partnership," "L.P.," "LP," "Ltd.," "LLP," or "L.L.P." can't appear in an Oregon LLC name.
Name distinguishability and availability
Your proposed LLC name must be distinguishable on the Oregon Secretary of State's Business Registry from every other active business name, reserved name, and registered name in the state. The Oregon SOS provides a Business Name Search tool to check availability before you file.
Oregon's distinguishability rules are stricter than people expect. The state disregards differences in punctuation, capitalization, spacing, and entity identifiers when comparing names. Rearranging the same key words usually isn't enough either — if the overall impression of 2 names is the same, the state will treat them as too similar.
Allowed characters and format
Oregon LLC names can include letters, numerals, and common punctuation or special characters — things like !, &, +, @, /, and #. That said, adding or removing a special character does not make a name distinguishable from an existing one. The state looks past those differences when checking for conflicts.
Prior rights and name conflicts
The Oregon Secretary of State will reject a name that isn't distinguishable from one already on file. Under ORS 63.094, the only way to register a name that closely resembles an existing one is to get written consent from the prior registrant and meet additional statutory requirements.
One thing worth knowing: even if a similar name shows up as inactive in the registry, there can still be restrictions on reusing it. Treat close matches with caution and check with a legal professional if you're unsure.
Assumed business names (DBAs) in Oregon
If your Oregon LLC does business under any name other than its exact registered name, you need to register that alternate name as an assumed business name — commonly called a DBA — with the Oregon Secretary of State. Oregon defines an assumed business name as any name that isn't the real and true name of the person or the registered name of the entity.
The assumed business name must also be distinguishable from other active registered names in Oregon. Registering a DBA creates a public record but doesn't give you exclusive trademark rights to the name — those are separate protections.
How to reserve an Oregon LLC name
Before reserving a name, check availability using the Oregon Secretary of State's Business Name Search tool. If the name is available and you're not ready to file your LLC yet, you can file an Application for Name Reservation with the Oregon Secretary of State, Corporations Division.
A name reservation holds the name for 120 days. No one else can register that name during that window. It doesn't form your LLC — it just protects the name while you get ready to file.
FAQ
Use the Oregon Secretary of State's Business Name Search tool at sos.oregon.gov to check whether your proposed name is already registered or conflicts with an active business name. You need to do this before filing your LLC or reserving a name — the state won't accept a name that isn't distinguishable from existing records.
Oregon requires your LLC name to include "Limited Liability Company," "LLC," or "L.L.C." as a designator. The name must be distinguishable from all active business names on the Oregon Secretary of State's registry. You can't use designators reserved for other entity types, and differences in punctuation, capitalization, or entity identifiers alone won't make your name distinguishable.
To file a DBA in Oregon, register an assumed business name with the Oregon Secretary of State. Any Oregon LLC that does business under a name other than its exact registered name must complete this registration. The assumed business name must be distinguishable from other active names in the state registry. Registering creates a public record but doesn't grant trademark rights.
An assumed business name search in Oregon is a check of the Secretary of State's registry to see whether a proposed DBA is already registered or too similar to an existing name. Oregon requires every assumed business name to be distinguishable from active registered names. Use the Business Name Search tool at sos.oregon.gov before filing your assumed business name registration.
Yes. You can do business under a name other than your registered LLC name in Oregon, but you need to register that name as an assumed business name with the Oregon Secretary of State. The alternate name must be distinguishable from other active names in the registry. Registering it creates a public record — it doesn't give you exclusive trademark rights to the name.
Yes. File an Application for Name Reservation with the Oregon Secretary of State, Corporations Division. A reservation holds the name for 120 days so no one else can register it while you prepare to form your LLC. Check name availability using the Oregon Business Name Search tool first — the state won't accept a reservation for a name that conflicts with an existing one.
Your LLC name gets registered when you file your Articles of Organization with the Oregon Secretary of State. Before filing, check name availability using the Oregon Business Name Search tool to confirm your name is distinguishable from existing records. If you want to operate under a different name, register it separately as an assumed business name with the Oregon Secretary of State.
