Tadashi — #8334 US boys' name

What the Data Says About Tadashi

The Social Security Administration has registered 665 babies named Tadashi between 1912 and 2024, spanning 113 consecutive years of U.S. birth records. As a boy's name, Tadashi currently holds the #8334 rank among boys for 2024. The name reached its historical peak in 1922, when 35 babies received it in a single year.

Decade-level aggregation shows that Tadashi performed strongest in the 1920s, accumulating 255 births during that ten-year window. Across the 10 decades of recorded activity, Tadashi shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Hawaii, which accounts for 264 births — the largest state-level total in the dataset — followed by California and Washington. In total, SSA state-level files list Tadashi in 3 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Tadashi 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 665 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.