Koi — #2694 US boys' name

What the Data Says About Koi

The Social Security Administration has registered 773 babies named Koi between 1995 and 2024, spanning 30 consecutive years of U.S. birth records. As a boy's name, Koi currently holds the #2694 rank among boys for 2024. The name reached its historical peak in 2022, when 64 babies received it in a single year. Koi is classified as unisex in SSA records: the opposite-sex variant accounts for 585 additional births since 1999.

Decade-level aggregation shows that Koi performed strongest in the 2010s, accumulating 315 births during that ten-year window. Across the 4 decades of recorded activity, Koi shows a stable profile with only moderate drift from its peak decade. Geographically, the name is most concentrated in Texas, which accounts for 37 births — the largest state-level total in the dataset — followed by Louisiana and Georgia. In total, SSA state-level files list Koi in 8 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Koi 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 773 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.