Kathyleen — girls' name

What the Data Says About Kathyleen

The Social Security Administration has registered 541 babies named Kathyleen between 1914 and 1998, spanning 85 consecutive years of U.S. birth records. As a girl's name, Kathyleen currently falls outside the top 1,000 girls' names for 1998. The name reached its historical peak in 1951, when 26 babies received it in a single year.

Decade-level aggregation shows that Kathyleen performed strongest in the 1950s, accumulating 176 births during that ten-year window. Across the 9 decades of recorded activity, Kathyleen shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 6 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Kathyleen in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Kathyleen 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 541 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.