Sinthia — girls' name

What the Data Says About Sinthia

The Social Security Administration has registered 258 babies named Sinthia between 1977 and 2023, spanning 47 consecutive years of U.S. birth records. As a girl's name, Sinthia currently falls outside the top 1,000 girls' names for 2023. The name reached its historical peak in 2000, when 19 babies received it in a single year.

Decade-level aggregation shows that Sinthia performed strongest in the 2000s, accumulating 102 births during that ten-year window. Across the 6 decades of recorded activity, Sinthia shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 40 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Sinthia in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Sinthia 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 258 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.