If you have questions about citizenship, contact the Irish Naturalisation and Immigration Service of the Department of Justice and Equality.
If you have renounced your Irish citizenship, you can only reclaim it if you were born on the island of Ireland, by making a declaration of citizenship.
To renounce your Irish citizenship, you must have completed a declaration of alienage and submitted it to the Irish Naturalisation and Immigration Service.
If your circumstances change and you want to reclaim your Irish citizenship, you can make a declaration of citizenship.