Theria — girls' name

What the Data Says About Theria

The Social Security Administration has registered 22 babies named Theria between 1919 and 1965, spanning 47 consecutive years of U.S. birth records. As a girl's name, Theria currently falls outside the top 1,000 girls' names for 1965. The name reached its historical peak in 1936, when 6 babies received it in a single year.

Decade-level aggregation shows that Theria performed strongest in the 1930s, accumulating 6 births during that ten-year window. Across the 4 decades of recorded activity, Theria shows a stable profile with only moderate drift from its peak decade.

No etymological entry is currently available for Theria 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 22 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.