Kathlyn — #2716 US girls' name

What the Data Says About Kathlyn

The Social Security Administration has registered 5,128 babies named Kathlyn between 1897 and 2024, spanning 128 consecutive years of U.S. birth records. As a girl's name, Kathlyn currently holds the #2716 rank among girls for 2024. The name reached its historical peak in 1951, when 125 babies received it in a single year.

Decade-level aggregation shows that Kathlyn performed strongest in the 1950s, accumulating 851 births during that ten-year window. Across the 14 decades of recorded activity, Kathlyn shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 362 births — the largest state-level total in the dataset — followed by Texas and Illinois. In total, SSA state-level files list Kathlyn in 22 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Kathlyn 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 5,128 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.