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🇮🇪Last verified August 13, 2026

Ireland citizenship through a parent

Usually automatic or straightforward

A parent born in Ireland makes you an Irish citizen automatically. A parent who was an Irish citizen (but born abroad) means you claim through the Foreign Births Register — the most DIY-friendly process in Europe.

The Rules That Decide It

  • Born-in-Ireland parent (pre-2005 rules): you are a citizen from birth — apply straight for a passport.

  • Foreign-born Irish-citizen parent: register on the FBR; citizenship dates from registration, not birth.

  • No language test, no apostilles, no interview.

What To Do Next

  1. 01

    Order long-form civil birth certificates (short-form abstracts get rejected).

  2. 02

    Gather your parent's Irish birth certificate from the GRO.

  3. 03

    Apply online at fbr.dfa.ie, then post the physical documents — the clock starts when they arrive in Dublin.

Other Ireland Ancestry Scenarios

Through a grandparentThrough a great-grandparentThrough a great-great-grandparent

Not Sure?

Get a definitive read on your line

Take the free eligibility test — it walks through the exact rules above for your specific ancestor and dates.

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Passport Heritage provides informational guidance and document organization services. We are not a law firm and do not provide legal advice. Rules can change without notice — always confirm current requirements with the relevant consulate, embassy or archive before acting.