Lachlan — #692 US boys' name

What the Data Says About Lachlan

The Social Security Administration has registered 5,640 babies named Lachlan between 1952 and 2024, spanning 73 consecutive years of U.S. birth records. As a boy's name, Lachlan currently holds the #692 rank among boys for 2024. The name reached its historical peak in 2024, when 389 babies received it in a single year.

Decade-level aggregation shows that Lachlan performed strongest in the 2010s, accumulating 2,697 births during that ten-year window. Across the 8 decades of recorded activity, Lachlan shows notable generational variation in parental adoption. Geographically, the name is most concentrated in California, which accounts for 494 births — the largest state-level total in the dataset — followed by New York and Washington. In total, SSA state-level files list Lachlan in 40 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Lachlan 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 5,640 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.