Siennah — girls' name

What the Data Says About Siennah

The Social Security Administration has registered 129 babies named Siennah between 2003 and 2025, spanning 23 consecutive years of U.S. birth records. As a girl's name, Siennah currently falls outside the top 1,000 girls' names for 2025. The name reached its historical peak in 2007, when 16 babies received it in a single year.

Decade-level aggregation shows that Siennah performed strongest in the 2010s, accumulating 59 births during that ten-year window. Across the 3 decades of recorded activity, Siennah shows notable generational variation in parental adoption. Geographically, the name is most concentrated in California, which accounts for 5 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Siennah in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Siennah 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 129 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.