Masanobu — boys' name

What the Data Says About Masanobu

The Social Security Administration has registered 35 babies named Masanobu between 1917 and 1934, spanning 18 consecutive years of U.S. birth records. As a boy's name, Masanobu currently falls outside the top 1,000 boys' names for 1934. The name reached its historical peak in 1926, when 7 babies received it in a single year.

Decade-level aggregation shows that Masanobu performed strongest in the 1920s, accumulating 18 births during that ten-year window. Across the 3 decades of recorded activity, Masanobu shows notable generational variation in parental adoption. Geographically, the name is most concentrated in Hawaii, which accounts for 17 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Masanobu in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Masanobu 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 35 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.