Masato — boys' name

What the Data Says About Masato

The Social Security Administration has registered 462 babies named Masato between 1912 and 2020, spanning 109 consecutive years of U.S. birth records. As a boy's name, Masato currently falls outside the top 1,000 boys' names for 2020. The name reached its historical peak in 1924, when 25 babies received it in a single year.

Decade-level aggregation shows that Masato performed strongest in the 1910s, accumulating 140 births during that ten-year window. Across the 8 decades of recorded activity, Masato shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Hawaii, which accounts for 175 births — the largest state-level total in the dataset — followed by California. In total, SSA state-level files list Masato in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Masato 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 462 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.