Abstract:
“Nikah Siri” is a marriage that conducted in Indonesia in this way is invalid and not legally
because it does not keep the records on marriage records. Resulting is the loss of civil
relationship between the child and his biological father and his father's family, the child only
have a civil relationship with her mother and her mother's family. So that children are not
acknowledged and considered invalid. Similarly, if the marriage was performed by two of
different status of citizenship. Because the children only have a civil relationship with her
mother, the child will only get her citizenship status as well.