If you were born outside Ireland to an Irish citizen who was himself or herself born outside Ireland and if any of your grandparents was born in Ireland, then you are entitled to become an Irish citizen. However before you can claim Irish citizenship, you must have your birth registered in the Foreign Births Register, which is maintained by the Irish Department of Foreign Affairs and Trade - see 'How to apply' below. If you live abroad, you must apply to have your birth registered through your nearest Irish embassy or consular office. If you are entitled to register, your Irish citizenship is effective from the date of registration - not from the date when you were born.
Citizenship through descent from Irish grandparents
If one of your grandparents is an Irish citizen but none of your parents was born in Ireland, you may become an Irish citizen. You will need to have your birth registered in the Foreign Births Register.
If you are entitled to register, your Irish citizenship is effective from the date of registration. The Irish citizenship of successive generations may be maintained in this way by each generation ensuring their registration in the Foreign Births Register
before the birth of the next generation.
Since 1 July 1986, a person registered in the Foreign Births Entry Book after 1986 is deemed to be an Irish citizen only from the date of his/her entry in the Register and not from the date of birth. This means that children born to that person before his/her date of entry in the Register are
not entitled to citizenship.
People registered before July 1986 are deemed Irish citizens either from the date the original Irish Nationality and Citizenship Act came into force, that is, 17 July 1956, or their date of birth, whichever is later. Only children born after 17 July 1956 can claim citizenship in such cases.
Other Irish ancestors
Unless at least one parent or grandparent was an Irish citizen at the time of your birth, you cannot claim Irish citizenship on the basis of extended previous ancestry (that is, ancestors other than your parents or grandparents). In addition, you cannot claim Irish citizenship on the basis that relation such as a cousin, aunt or uncle was an Irish citizen if none of your parents or grandparents was an Irish citizen at the time of your birth.
The following table may help to explain the situation:
Code:
If you are: Then you are:
A Born in the island of Ireland on or before 31 December 2004 Entitled to Irish citizenship or you are an Irish citizen
B Born on the island of Ireland on or after 1 January 2005 Entitled to Irish citizenship if your parents are Irish. Entitled to Irish citizenship, if your parents are foreign nationals legally resident in the island of Ireland for 3 out of 4 years immediately prior to your birth.
C Child of A, born outside the island of Ireland An Irish citizen
D Child of C and a grandchild of A, born outside the island of Ireland Entitled to Irish citizenship, but you must first register in the Foreign Births Register
E a child of D and a great-grandchild of A, born outside the island of Ireland Entitled to Irish citizenship, by having your birth registered in the Foreign Births Register, but only if your parent D had registered by the time of your birth.
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