Mitsuko — girls' name

What the Data Says About Mitsuko

The Social Security Administration has registered 565 babies named Mitsuko between 1911 and 1981, spanning 71 consecutive years of U.S. birth records. As a girl's name, Mitsuko currently falls outside the top 1,000 girls' names for 1981. The name reached its historical peak in 1919, when 48 babies received it in a single year.

Decade-level aggregation shows that Mitsuko performed strongest in the 1920s, accumulating 300 births during that ten-year window. Across the 5 decades of recorded activity, Mitsuko shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Hawaii, which accounts for 320 births — the largest state-level total in the dataset — followed by California. In total, SSA state-level files list Mitsuko in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Mitsuko 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 565 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.