The Erin journal

Irish citizenship, explained honestly.

No marketing math, no outdated rules. Clear answers about who qualifies after the Foreign Births Register, the grandparent rule, the great-grandparent timing rule, and the documents and dates that decide a case — so you can decide your next step with eyes open.

Who qualifies

Irish citizenship through a grandparent: who qualifies in 2026

If a grandparent was born on the island of Ireland, you can almost certainly become an Irish citizen through the Foreign Births Register — even if your parent never registered. Here's how it works.

June 10, 2026 · 7 min read

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