Boys' name · since 1989
Adelfo
69 babies named Adelfo in U.S. Social Security records since 1989, with the highest year being 1993. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #19,872 of 45,481
- all-time among boys
- 69
- born since 1989
- 2000s
- peak decade
69 boys have been named Adelfo since 1989, though it isn't currently a top-ranked name.
Adelfo has 69 recorded births among boys since 1989, per the U.S. Social Security Administration, though it falls outside today's most-used boys names, busiest in the 2000s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1989 to 2023.
- #19,872 of 45,481 all-time among boys
- 69 born since 1989
- 2000s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Adelfo ranks #19,872 of 45,481 boys' names by all-time recorded births (highest first). 69 born since 1989, peaking in the 2000s.
- #19,872 of 45,481
- all-time among boys
- 69
- born since 1989
- 2000s
- peak decade
Adelfo's 69 recorded births place it above 56.07% of the 45,481 boys names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Adelfo's usage pattern, beyond the headline number
Adelfo splits its recorded history at 2005: 49% of all births land in the more recent half, 51% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1989 (5 births) -- compare that against the 1993 peak of 8 for a sense of just how much the name's popularity has swung.
Adelfo popularity over time
Annual U.S. births registered with the Social Security Administration · 1989–2023
- Peak year (1993)
- 8
- Annual births at peak, across 35 years of records
Adelfo by decade
2000s is the heaviest window (44 births, 64% of the file).
2000s was Adelfo's strongest decade.
44 babies received the name during that ten-year window, about 64% of all-time use.
Adelfo births by decade
Total births in each ten-year window
- 1980s 5
1980s
5 births
- 1990s 14
1990s
14 births
- 2000s
2000s
44 births
- 2020s 6
2020s
6 births
What this shows Peak: 2000s at 44 births (64% of all-time use).
Frequently Asked Questions
How popular is the name Adelfo? ▼
Where does Adelfo sit in the SSA name archive? ▼
When was Adelfo most popular? ▼
How long has the name Adelfo been used? ▼
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What to do with Adelfo's data
- Adelfo's decade-level peak was the 2000s (44 total births); usage has since declined to 6 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Adelfo
Nearby Names Like Adelfo
Names with a similar sound, spelling, or feel to Adelfo
Compare Adelfo side by side: Adelfo vs Aden Adelfo vs Adelbert Adelfo vs Adel
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Adelfo: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1993)
Similar record span (~34 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, 1989–2023 (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 Adelfo 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.