Jef — boys' name

What the Data Says About Jef

The Social Security Administration has registered 129 babies named Jef between 1953 and 1973, spanning 21 consecutive years of U.S. birth records. As a boy's name, Jef currently falls outside the top 1,000 boys' names for 1973. The name reached its historical peak in 1963, when 15 babies received it in a single year.

Decade-level aggregation shows that Jef performed strongest in the 1960s, accumulating 71 births during that ten-year window. Across the 3 decades of recorded activity, Jef shows notable generational variation in parental adoption. Geographically, the name is most concentrated in California, which accounts for 10 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Jef in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Jef 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 129 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.