Do I Have an ORCID iD? How to Merge Duplicates

Do I have an ORCID iD? Search your name in the ORCID public registry or try the password-reset page with every professional and personal email address you have used. If a record was already created for you — often automatically, through a university, funder, or journal submission system — you already have one, and sometimes two. A duplicate must be merged or deactivated; it should never be left active alongside your main record.

An ORCID iD is a free, persistent 16-digit identifier — formatted as four blocks of four characters and validated with an ISO 7064 (MOD 11-2) check digit — that uniquely distinguishes a researcher from every other person with the same or a similar name. Because the identifier is designed to be permanent, ORCID does not delete duplicate records outright; it deprecates them, and this article covers exactly how that consolidation process works, distinct from closing an account you no longer want at all.

• How do I check if I already have an ORCID iD?
• Why do researchers end up with duplicate ORCID iDs?
• Should you merge or deactivate a duplicate record?
• How to remove a duplicate ORCID iD, step by step
• What happens to your record after a merge?
• Common questions about duplicate ORCID iDs

How do I check if I already have an ORCID iD?

ORCID gives three reliable ways to confirm whether a record already exists in your name. Each targets a different reason people lose track of an iD: forgotten registration, a changed email address, or an institution having created one on your behalf.

• Search the public registry. Type your name into the ORCID search bar. If no plausible match appears, you have not yet registered.
• Recover by email. Enter every current and former professional or personal email address into the ORCID password-reset page. If a matching account exists, ORCID emails you the 16-digit iD.
• Attempt to register. ORCID’s own guidance confirms that the sign-up form will flag a likely pre-existing profile with your name before letting you create a new one, according to ORCID’s help article “I am not sure if I already have an ORCID ID.”

If none of these methods surfaces a record, you do not yet have an ORCID iD and can register directly. If more than one method turns up a plausible match, treat that as the trigger to work through the duplicate-resolution process below rather than creating a third record.

Why do researchers end up with duplicate ORCID iDs?

Duplicate ORCID records are a routine, well-documented problem, not a rare edge case. They typically arise because ORCID registration is embedded in several independent systems that do not always check for an existing iD first.

• Registering separately through a university onboarding portal, a funder’s grant-application system, and a journal’s manuscript-submission form, each of which can silently spin up a new iD if the researcher does not sign in with an existing one.
• Using a different email address at each career stage — student, postdoc, staff — without linking them to a single account.
• Name variants (middle names, hyphenation, transliteration) that make it harder to recognise an existing record during sign-up.

None of these causes are dangerous alone — the risk is that citations, grants, and peer-review credit end up scattered across two identifiers instead of one.

Should you merge or deactivate a duplicate record?

These are two different actions with different outcomes, and ORCID’s support documentation is explicit that they are not interchangeable. Merging a duplicate is the correct fix; deactivating an account is for closing ORCID access altogether.

ORCID’s own account-closure guidance states plainly: “Accidentally registered multiple ORCID iDs? Do not deactivate your account — use the duplicate record removal process to merge the accounts instead,” per ORCID’s support article “Deactivating an ORCID account.”

How to remove a duplicate ORCID iD, step by step

The self-service duplicate-removal process takes only a few minutes if you can sign in to both records. ORCID’s help article “I have more than one ORCID iD” sets out the following steps:

1. Sign in to the ORCID record you want to keep as your primary iD, and go to Account Settings.
2. Scroll to “Account actions” and select Remove a duplicate record.
3. Enter the sign-in details (email address or iD, plus password) for the record you want to remove.
4. Confirm the removal. The duplicate iD is then deprecated, not deleted outright — it becomes a redirect pointing to your primary record, both in the ORCID interface and via the ORCID API.

If you cannot remember the duplicate’s login details, use the password-reset page first, or contact ORCID support. Only the duplicate’s email address carries over automatically — works, affiliations, and peer-review records on the deprecated iD are not copied across, so check it for anything worth re-adding manually before you remove it.

What happens to your record after a merge?

Because ORCID iDs are built to be permanent, a deprecated iD does not simply vanish. It continues to resolve — for example, a deprecated iD such as 0000-0001-6151-2200 displays as deprecated and points visitors to the surviving record, exactly as documented in ORCID’s own duplicate-removal guidance. This matters for anyone tracking citation trails: a paper or grant that cites the old iD will still lead back to the correct, consolidated profile.

ORCID also relies on the wider community, not only account holders, to flag duplicates it has not caught. Where a publisher, funder, or institution reports a suspected duplicate, ORCID follows its published dispute procedures to investigate and, where warranted, action a merge itself. That support-mediated route is the one to use when access — not awareness — is the blocker.

This distinction matters for institutions too. Many funders, including UK Research and Innovation (UKRI), require an ORCID iD to submit a grant application, and journals following ICMJE recommendations increasingly request one from corresponding authors. A researcher with an unresolved duplicate risks having grant history or publication credit split across two identifiers precisely when a funder or publisher checks it.

Common questions about duplicate ORCID iDs

How do I check if I have an ORCID iD?

Search your name on ORCID’s public registry, or enter your current and former email addresses on the password-reset page — a matching account will trigger a recovery email containing your 16-digit iD. Attempting to register also flags an existing profile before a new one is created.

What if I don’t have an ORCID iD?

If no search or recovery method returns a match, you can register directly on the ORCID registration page in under a minute, free of charge. Registering early avoids the more common problem: multiple systems each creating a separate iD later because none could find an existing one.

Is ORCID iD compulsory?

ORCID iDs are not universally mandatory, but they are increasingly required in practice. Many funders and publishers now require an ORCID iD for corresponding authors or grant applicants, so in those specific workflows it is effectively compulsory even where no single global rule enforces it.

Should I put my ORCID on my CV?

Yes — listing your ORCID iD on a CV, grant application, or publication profile helps funders, publishers, and collaborators disambiguate you from researchers with similar names. It also gives reviewers a single, authoritative link to your full, consolidated research and authorship record.

Duplicate ORCID records will keep recurring as long as registration is distributed across universities, funders, and journals rather than centralised at first sign-up. Checking for an existing iD before registering, and merging — rather than abandoning — any duplicate you discover, keeps your research history intact across research administration systems and authorship records, correctly attributed for the rest of your career.