Is Il Seong a boy or girl name?
Il Seong is listed as a boy name in our name lists. It is recorded in South Korea. Il Seong is too rare in US Social Security records for us to chart.
Il Seong was gathered with automated tools. It has not been checked against an official register and carries no counts, so treat the details on this page as unconfirmed. How the lists are made.
Where Il Seong is recorded
A country here means the name is recorded there. It is not a ranking.
Names that start like Il Seong
This page shows only what our lists record for Il Seong. We do not publish name meanings or origins. Sources and method.