Lilley — girls' name

What the Data Says About Lilley

The Social Security Administration has registered 430 babies named Lilley between 1919 and 2023, spanning 105 consecutive years of U.S. birth records. As a girl's name, Lilley currently falls outside the top 1,000 girls' names for 2023. The name reached its historical peak in 2008, when 33 babies received it in a single year.

Decade-level aggregation shows that Lilley performed strongest in the 2010s, accumulating 195 births during that ten-year window. Across the 5 decades of recorded activity, Lilley shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Michigan, which accounts for 8 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Lilley in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Lilley 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 430 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.