Delwyn — boys' name

What the Data Says About Delwyn

The Social Security Administration has registered 918 babies named Delwyn between 1917 and 2025, spanning 109 consecutive years of U.S. birth records. As a boy's name, Delwyn currently falls outside the top 1,000 boys' names for 2025. The name reached its historical peak in 1959, when 28 babies received it in a single year.

Decade-level aggregation shows that Delwyn performed strongest in the 1950s, accumulating 158 births during that ten-year window. Across the 12 decades of recorded activity, Delwyn shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Michigan, which accounts for 10 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Delwyn in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Delwyn 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 918 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.