Sydna — girls' name

What the Data Says About Sydna

The Social Security Administration has registered 168 babies named Sydna between 1915 and 1979, spanning 65 consecutive years of U.S. birth records. As a girl's name, Sydna currently falls outside the top 1,000 girls' names for 1979. The name reached its historical peak in 1940, when 15 babies received it in a single year.

Decade-level aggregation shows that Sydna performed strongest in the 1940s, accumulating 66 births during that ten-year window. Across the 6 decades of recorded activity, Sydna shows a clear decline from its mid-century high.

No etymological entry is currently available for Sydna 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 168 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.