Sergei — boys' name

What the Data Says About Sergei

The Social Security Administration has registered 371 babies named Sergei between 1925 and 2021, spanning 97 consecutive years of U.S. birth records. As a boy's name, Sergei currently falls outside the top 1,000 boys' names for 2021. The name reached its historical peak in 1998, when 16 babies received it in a single year.

Decade-level aggregation shows that Sergei performed strongest in the 2000s, accumulating 86 births during that ten-year window. Across the 10 decades of recorded activity, Sergei shows a clear decline from its mid-century high.

No etymological entry is currently available for Sergei 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 371 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.