Dillan — #2889 US boys' name

What the Data Says About Dillan

The Social Security Administration has registered 6,966 babies named Dillan between 1975 and 2024, spanning 50 consecutive years of U.S. birth records. As a boy's name, Dillan currently holds the #2889 rank among boys for 2024. The name reached its historical peak in 1992, when 341 babies received it in a single year. Dillan is classified as unisex in SSA records: the opposite-sex variant accounts for 384 additional births since 1993.

Decade-level aggregation shows that Dillan performed strongest in the 2000s, accumulating 2,703 births during that ten-year window. Across the 6 decades of recorded activity, Dillan shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 673 births — the largest state-level total in the dataset — followed by Texas and Florida. In total, SSA state-level files list Dillan in 38 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Dillan 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 6,966 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.