Thetis — girls' name

What the Data Says About Thetis

The Social Security Administration has registered 147 babies named Thetis between 1914 and 1949, spanning 36 consecutive years of U.S. birth records. As a girl's name, Thetis currently falls outside the top 1,000 girls' names for 1949. The name reached its historical peak in 1915, when 10 babies received it in a single year.

Decade-level aggregation shows that Thetis performed strongest in the 1920s, accumulating 72 births during that ten-year window. Across the 4 decades of recorded activity, Thetis shows a clear decline from its mid-century high.

No etymological entry is currently available for Thetis 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 147 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.