Tonnie — unisex name

What the Data Says About Tonnie

The Social Security Administration has registered 684 babies named Tonnie between 1915 and 2007, spanning 93 consecutive years of U.S. birth records. As a girl's name, Tonnie currently falls outside the top 1,000 girls' names for 2007. The name reached its historical peak in 1963, when 28 babies received it in a single year. Tonnie is classified as unisex in SSA records: the opposite-sex variant accounts for 473 additional births since 1915.

Decade-level aggregation shows that Tonnie performed strongest in the 1960s, accumulating 220 births during that ten-year window. Across the 9 decades of recorded activity, Tonnie shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 12 births — the largest state-level total in the dataset — followed by Michigan and Texas. In total, SSA state-level files list Tonnie in 3 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Tonnie 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 684 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.