Cosmo — #1688 US boys' name

What the Data Says About Cosmo

The Social Security Administration has registered 2,869 babies named Cosmo between 1910 and 2024, spanning 115 consecutive years of U.S. birth records. As a boy's name, Cosmo currently holds the #1688 rank among boys for 2024. The name reached its historical peak in 2022, when 99 babies received it in a single year.

Decade-level aggregation shows that Cosmo performed strongest in the 1920s, accumulating 452 births during that ten-year window. Across the 12 decades of recorded activity, Cosmo shows a stable profile with only moderate drift from its peak decade. Geographically, the name is most concentrated in New York, which accounts for 676 births — the largest state-level total in the dataset — followed by California and Massachusetts. In total, SSA state-level files list Cosmo in 14 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Cosmo 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 2,869 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.