Zef — boys' name
44 babies named Zef in U.S. Social Security records since 1973, with the highest year being 1973. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
27% of everyone ever named Zef was born in this single decade.
6 babies were named Zef in 1973 — its busiest year on record.
What the Data Says About Zef
The Social Security Administration has registered 44 babies named Zef between 1973 and 2023, spanning 51 consecutive years of U.S. birth records. As a boy's name, Zef currently falls outside the top 1,000 boys' names for 2023. The name reached its historical peak in 1973, when 6 babies received it in a single year.
Decade-level aggregation shows that Zef performed strongest in the 2010s, accumulating 12 births during that ten-year window. Across the 6 decades of recorded activity, Zef shows notable generational variation in parental adoption.
No etymological entry is currently available for Zef 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 44 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.
Zef at a glance
Last recorded 2023Peak year
Current rank
Active since
Zef popularity over time
Annual U.S. births registered with the Social Security Administration · 2023–1973
- Peak year (1973)
- 6
- Annual births at peak — across 51 years of records
No longer in the modern top-1000 — last recorded 2023.
44 total births across 51 years of SSA records. Peaked in 1973 with 6 births in a single year.
Zef by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 2010s
- 12 births that decade — 27% of Zef's all-time total
Zef decade highlights
- Peak decade 12 births
- Runner-up 10 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
2010s was Zef's strongest decade
12 babies received the name during that ten-year window — about 27% of all-time use.
Frequently Asked Questions
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Data Sources
Data as of 2024. Source: U.S. Social Security Administration (SSA).
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1973–2023 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.
State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.