Quick answer
An adult Foreign Births Register application needs original civil certificates for each generation in your claim, certified copies of photo ID, two original proofs of address, four passport photos and the signed, witnessed application form. Incomplete applications are returned without being processed.
Your documents checklist
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About you
0/6Your parent in the Irish line
0/3The parent who is the child of your Irish-born grandparent.
Your Irish-born grandparent
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Originals, copies and certified copies
Unless the list says otherwise, send originals: birth, marriage and death certificates must be the ones issued by the civil registration authority. They are all returned to you by recorded mail at the end.
Photo ID is the exception. Send a photocopy certified as a true copy — your own by your application witness, and a living parent’s or grandparent’s by someone from the approved witness list. A certified copy is signed and dated by that person as a true copy of the original. Keep the original ID yourself.
When names don’t match
If anyone’s name has changed since birth — most often through marriage — include the marriage certificate or another change-of-name document so each record links to the next. Your Foreign Birth Registration certificate will show your name exactly as it appears on your birth certificate.
Grandparents born before 1864
Irish civil registration of births began in 1864. For a grandparent born before then, the Department of Foreign Affairs accepts a baptismal certificate instead of a birth certificate. You can search the parish registers with Find Irish documents.
Children and adoption
This checklist covers adults. Applications for someone under 18, and applications through a parent who was adopted, have their own document lists — for example, a child’s application needs a letter from a school or family doctor showing their address instead of proofs of address. Use the official list on ireland.ie (opens in a new tab) for those.
Sources
Checked against these official pages on . Requirements can change — confirm them before you apply.