Taisei — boys' name

What the Data Says About Taisei

The Social Security Administration has registered 155 babies named Taisei between 1999 and 2023, spanning 25 consecutive years of U.S. birth records. As a boy's name, Taisei currently falls outside the top 1,000 boys' names for 2023. The name reached its historical peak in 2010, when 12 babies received it in a single year.

Decade-level aggregation shows that Taisei performed strongest in the 2010s, accumulating 75 births during that ten-year window. Across the 4 decades of recorded activity, Taisei shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 10 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Taisei in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Taisei 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 155 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.