Reiko — girls' name

What the Data Says About Reiko

The Social Security Administration has registered 671 babies named Reiko between 1921 and 2023, spanning 103 consecutive years of U.S. birth records. As a girl's name, Reiko currently falls outside the top 1,000 girls' names for 2023. The name reached its historical peak in 1975, when 23 babies received it in a single year.

Decade-level aggregation shows that Reiko performed strongest in the 1970s, accumulating 139 births during that ten-year window. Across the 10 decades of recorded activity, Reiko shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 88 births — the largest state-level total in the dataset — followed by Hawaii. In total, SSA state-level files list Reiko in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Reiko 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 671 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.