Sejun — boys' name

What the Data Says About Sejun

The Social Security Administration has registered 6 babies named Sejun between 2021 and 2021, spanning 1 consecutive years of U.S. birth records. As a boy's name, Sejun currently falls outside the top 1,000 boys' names for 2021. The name reached its historical peak in 2021, when 6 babies received it in a single year.

Decade-level aggregation shows that Sejun performed strongest in the 2020s, accumulating 6 births during that ten-year window.

No etymological entry is currently available for Sejun in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 6 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.