Tatsuko — girls' name

What the Data Says About Tatsuko

The Social Security Administration has registered 39 babies named Tatsuko between 1916 and 1928, spanning 13 consecutive years of U.S. birth records. As a girl's name, Tatsuko currently falls outside the top 1,000 girls' names for 1928. The name reached its historical peak in 1916, when 14 babies received it in a single year.

Decade-level aggregation shows that Tatsuko performed strongest in the 1920s, accumulating 20 births during that ten-year window. Across the 2 decades of recorded activity, Tatsuko shows a stable profile with only moderate drift from its peak decade. Geographically, the name is most concentrated in Hawaii, which accounts for 13 births — the largest state-level total in the dataset — followed by California. In total, SSA state-level files list Tatsuko in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Tatsuko 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 39 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.