Dillian — boys' name

What the Data Says About Dillian

The Social Security Administration has registered 610 babies named Dillian between 1989 and 2021, spanning 33 consecutive years of U.S. birth records. As a boy's name, Dillian currently falls outside the top 1,000 boys' names for 2021. The name reached its historical peak in 1992, when 41 babies received it in a single year.

Decade-level aggregation shows that Dillian performed strongest in the 1990s, accumulating 292 births during that ten-year window. Across the 5 decades of recorded activity, Dillian shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Ohio, which accounts for 6 births — the largest state-level total in the dataset — followed by Texas and Alabama. In total, SSA state-level files list Dillian in 4 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Dillian 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 610 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.