Boys' name · since 2004
Sef
12 babies named Sef in U.S. Social Security records since 2004, with the highest year being 2004. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #32,946 of 45,481
- all-time among boys
- 12
- born since 2004
- 2000s
- peak decade
Sef is not among the current top-ranked boys names; 12 have been recorded since 2004.
According to the U.S. Social Security Administration, Sef has been recorded 12 times among boys since 2004, though it is not among the currently most-used boys names, with its heaviest use in the 2000s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 2004 to 2006.
- #32,946 of 45,481 all-time among boys
- 12 born since 2004
- 2000s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Sef ranks #32,946 of 45,481 boys' names by all-time recorded births (highest first). 12 born since 2004, peaking in the 2000s.
- #32,946 of 45,481
- all-time among boys
- 12
- born since 2004
- 2000s
- peak decade
Sef's 12 recorded births place it above 27.23% of the 45,481 boys names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Sef's usage pattern, beyond the headline number
Divide Sef's SSA record in two at 2006 and the more recent half accounts for 50% of all births, the earlier half the remaining 50%, a genuinely balanced usage pattern. Its calmest year was 2004, with only 6 births recorded.
Sef popularity over time
Annual U.S. births registered with the Social Security Administration · 2004–2006
- Peak year (2004)
- 6
- Annual births at peak, across 3 years of records
Sef by decade
2000s is the heaviest window (12 births, 100% of the file).
2000s was Sef's strongest decade.
12 babies received the name during that ten-year window, about 100% of all-time use.
Sef births by decade
Total births in each ten-year window
- 2000s
2000s
12 births
What this shows Peak: 2000s at 12 births (100% of all-time use).
Frequently Asked Questions
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Keep exploring Sef
Nearby Names Like Sef
Names with a similar sound, spelling, or feel to Sef
Compare Sef side by side: Sef vs Seferino Sef vs Sefton Sef vs Sefa
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Sef: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2004)
Similar record span (~2 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 2004–2006 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Sef draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.