Rhiannon — #1310 US girls' name

What the Data Says About Rhiannon

The Social Security Administration has registered 15,325 babies named Rhiannon between 1974 and 2024, spanning 51 consecutive years of U.S. birth records. As a girl's name, Rhiannon currently holds the #1310 rank among girls for 2024. The name reached its historical peak in 1999, when 651 babies received it in a single year.

Decade-level aggregation shows that Rhiannon performed strongest in the 2000s, accumulating 4,075 births during that ten-year window. Across the 6 decades of recorded activity, Rhiannon shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 1,899 births — the largest state-level total in the dataset — followed by Texas and New York. In total, SSA state-level files list Rhiannon in 46 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Rhiannon 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 15,325 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.