Leo — #24 US boys' name

What the Data Says About Leo

The Social Security Administration has registered 251,760 babies named Leo between 1880 and 2024, spanning 145 consecutive years of U.S. birth records. As a boy's name, Leo currently holds the #24 rank among boys for 2024. The name reached its historical peak in 2022, when 8,290 babies received it in a single year.

Decade-level aggregation shows that Leo performed strongest in the 2010s, accumulating 44,700 births during that ten-year window. Across the 15 decades of recorded activity, Leo shows a stable profile with only moderate drift from its peak decade. Geographically, the name is most concentrated in California, which accounts for 21,797 births — the largest state-level total in the dataset — followed by New York and Pennsylvania. In total, SSA state-level files list Leo in 51 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Leo 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 251,760 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.