Tomoko — girls' name

What the Data Says About Tomoko

The Social Security Administration has registered 128 babies named Tomoko between 1923 and 1991, spanning 69 consecutive years of U.S. birth records. As a girl's name, Tomoko currently falls outside the top 1,000 girls' names for 1991. The name reached its historical peak in 1982, when 10 babies received it in a single year.

Decade-level aggregation shows that Tomoko performed strongest in the 1980s, accumulating 51 births during that ten-year window. Across the 5 decades of recorded activity, Tomoko shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 5 births — the largest state-level total in the dataset — followed by Hawaii. In total, SSA state-level files list Tomoko in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Tomoko 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 128 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.