Unknown — #3149 US boys' name

What the Data Says About Unknown

The Social Security Administration has registered 9,827 babies named Unknown between 1880 and 2024, spanning 145 consecutive years of U.S. birth records. As a boy's name, Unknown currently holds the #3149 rank among boys for 2024. The name reached its historical peak in 1954, when 549 babies received it in a single year. Unknown is classified as unisex in SSA records: the opposite-sex variant accounts for 9,775 additional births since 1886.

Decade-level aggregation shows that Unknown performed strongest in the 1950s, accumulating 4,206 births during that ten-year window. Across the 15 decades of recorded activity, Unknown shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Georgia, which accounts for 1,183 births — the largest state-level total in the dataset — followed by Alabama and Oregon. In total, SSA state-level files list Unknown in 33 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Unknown 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 9,827 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.