Mitsuo — boys' name

What the Data Says About Mitsuo

The Social Security Administration has registered 521 babies named Mitsuo between 1912 and 1940, spanning 29 consecutive years of U.S. birth records. As a boy's name, Mitsuo currently falls outside the top 1,000 boys' names for 1940. The name reached its historical peak in 1925, when 40 babies received it in a single year.

Decade-level aggregation shows that Mitsuo performed strongest in the 1920s, accumulating 321 births during that ten-year window. Across the 4 decades of recorded activity, Mitsuo shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Hawaii, which accounts for 350 births — the largest state-level total in the dataset — followed by California. In total, SSA state-level files list Mitsuo in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Mitsuo 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 521 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.