Eilleen — girls' name

What the Data Says About Eilleen

The Social Security Administration has registered 503 babies named Eilleen between 1915 and 2018, spanning 104 consecutive years of U.S. birth records. As a girl's name, Eilleen currently falls outside the top 1,000 girls' names for 2018. The name reached its historical peak in 1916, when 16 babies received it in a single year.

Decade-level aggregation shows that Eilleen performed strongest in the 1920s, accumulating 105 births during that ten-year window. Across the 11 decades of recorded activity, Eilleen shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 5 births — the largest state-level total in the dataset — followed by Pennsylvania. In total, SSA state-level files list Eilleen in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Eilleen 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 503 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.