Onnie — unisex name

What the Data Says About Onnie

The Social Security Administration has registered 1,079 babies named Onnie between 1886 and 2023, spanning 138 consecutive years of U.S. birth records. As a girl's name, Onnie currently falls outside the top 1,000 girls' names for 2023. The name reached its historical peak in 1922, when 33 babies received it in a single year. Onnie is classified as unisex in SSA records: the opposite-sex variant accounts for 657 additional births since 1885.

Decade-level aggregation shows that Onnie performed strongest in the 1920s, accumulating 263 births during that ten-year window. Across the 12 decades of recorded activity, Onnie shows a clear decline from its mid-century high. Geographically, the name is most concentrated in North Carolina, which accounts for 79 births — the largest state-level total in the dataset — followed by Georgia and Mississippi. In total, SSA state-level files list Onnie in 6 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Onnie 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 1,079 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.