Sinjin — boys' name

What the Data Says About Sinjin

The Social Security Administration has registered 376 babies named Sinjin between 1989 and 2022, spanning 34 consecutive years of U.S. birth records. As a boy's name, Sinjin currently falls outside the top 1,000 boys' names for 2022. The name reached its historical peak in 1992, when 25 babies received it in a single year.

Decade-level aggregation shows that Sinjin performed strongest in the 1990s, accumulating 183 births during that ten-year window. Across the 5 decades of recorded activity, Sinjin shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 42 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Sinjin in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Sinjin 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 376 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.