Killian — #369 US boys' name

What the Data Says About Killian

The Social Security Administration has registered 15,446 babies named Killian between 1915 and 2024, spanning 110 consecutive years of U.S. birth records. As a boy's name, Killian currently holds the #369 rank among boys for 2024. The name reached its historical peak in 2017, when 1,505 babies received it in a single year.

Decade-level aggregation shows that Killian performed strongest in the 2010s, accumulating 7,882 births during that ten-year window. Across the 7 decades of recorded activity, Killian shows notable generational variation in parental adoption. Geographically, the name is most concentrated in California, which accounts for 1,205 births — the largest state-level total in the dataset — followed by Texas and Florida. In total, SSA state-level files list Killian in 50 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Killian 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 15,446 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.