Boys' name · since 1922
Gillermo
Since 1922, U.S. Social Security records show 633 babies named Gillermo, peaking in 1993. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #6,847 of 45,481
- all-time among boys
- 633
- born since 1922
- 1990s
- peak decade
633 boys have been named Gillermo since 1922, though it isn't currently a top-ranked name.
Social Security Administration records show Gillermo recorded 633 times among boys since 1922, though it doesn't currently rank among the most-used boys names, peaking in the 1990s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1922 to 2011.
- #6,847 of 45,481 all-time among boys
- 633 born since 1922
- 1990s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Gillermo ranks #6,847 of 45,481 boys' names by all-time recorded births (highest first). 633 born since 1922, peaking in the 1990s.
- #6,847 of 45,481
- all-time among boys
- 633
- born since 1922
- 1990s
- peak decade
Gillermo's 633 recorded births place it above 84.93% of the 45,481 boys names in the full SSA archive.
The state file records this name in 2 jurisdictions, led by California.
Gillermo's usage pattern, beyond the headline number
Splitting Gillermo's full recorded timeline at 1973, 59% of its total births fall in the more recent half of the record versus 41% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1922, with just 5 recorded births -- worth weighing against the 1993 peak of 21 to see the full range of the name's swing in popularity.
Gillermo popularity over time
Annual U.S. births registered with the Social Security Administration · 1922–2011
- Peak year (1993)
- 21
- Annual births at peak, across 90 years of records
Gillermo by decade
1990s is the heaviest window (138 births, 22% of the file).
1990s was Gillermo's strongest decade.
138 babies received the name during that ten-year window, about 22% of all-time use.
Gillermo births by decade
Total births in each ten-year window
- 1920s 55
1920s
55 births
- 1930s 33
1930s
33 births
- 1940s 39
1940s
39 births
- 1950s
1950s
56 births
- 1960s 38
1960s
38 births
- 1970s
1970s
112 births
- 1980s
1980s
103 births
- 1990s
1990s
138 births
- 2000s 54
2000s
54 births
- 2010s 5
2010s
5 births
What this shows Peak: 1990s at 138 births (22% of all-time use).
How Gillermo compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Gillermo's total volume
Gillermo by state
Where Gillermo concentrates geographically, total births since 1922
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 140 | 22.1% |
| #2 | Texas | | 74 | 11.7% |
140 of 633 births nationwide. Compared to a flat distribution across 2 reporting states.
Frequently Asked Questions
How popular is the name Gillermo? ▼
Where does Gillermo sit in the SSA name archive? ▼
When was Gillermo most popular? ▼
Where is Gillermo most popular? ▼
How long has the name Gillermo been used? ▼
What names are similar to Gillermo? ▼
What to do with Gillermo's data
- Gillermo's decade-level peak was the 1990s (138 total births); usage has since declined to 5 in the 2010s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Gillermos (140 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Gillermo
Nearby Names Like Gillermo
Names with a similar sound, spelling, or feel to Gillermo
Compare Gillermo side by side: Gillermo vs Gilbert Gillermo vs Gilberto Gillermo vs Gil
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Gillermo: 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 (~89 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, 1922–2011 (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 Gillermo 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.