Over 100 adopted children were incorrectly registered at birth, according to Tusla.
The child and family agency revealed today that 126 people adopted between 1946 and 1969 received incorrect information on their birth certificates.
Some of the certs are said to have the names of adoptive parents instead of birth parents.
Minister for Children Katherine Zappone has said that many of these people may not know they were adopted.
She also said that more cases may be uncovered over time.
This came after former adoption society St Patrick’s Guild transferred their records to Tusla, brining to light the false registrations.
Minister Zappone has said that Tusla will now contact each of the 126 people because they "... have a right to know who they are".
The agency has opened a free helpline between 10am and 4pm on weekends for anyone seeking information.
You can contact it on 1800 805 665.
