Boys' name · since 1911
Kazuo
Since 1911, U.S. Social Security records show 762 babies named Kazuo, peaking in 1921. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #6,077 of 45,481
- all-time among boys
- #12,070 of 13,930
- 2025 SSA year
- 762
- born since 1911
- 1920s
- peak decade
762 babies have been named Kazuo since 1911, making it today's #12070 boys' name.
According to the U.S. Social Security Administration, Kazuo has been recorded 762 times among boys since 1911, currently ranked #12070 nationally and more common than 13% of boys, with its heaviest use in the 1920s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1911 to 2025.
- #6,077 of 45,481 all-time among boys
- #12,070 of 13,930 2025 SSA year
- 762 born since 1911
- 1920s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Kazuo ranks #6,077 of 45,481 boys' names by all-time recorded births (highest first) and #12,070 of 13,930 among boys' names in 2025. 762 born since 1911, peaking in the 1920s.
- #6,077 of 45,481
- all-time among boys
- #12,070 of 13,930
- 2025 SSA year
- 762
- born since 1911
- 1920s
- peak decade
Kazuo's 762 recorded births place it above 86.63% of the 45,481 boys names in the full SSA archive.
The state file records this name in 3 jurisdictions, led by Hawaii.
How Kazuo compares
762 Top 36% higher than 64% of 13,930 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Kazuo's all-time total is 107% above the median boys name, and Liam still leads by a wide margin.
| Metric | Kazuo | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 762 | 369 | 358,536 |
| Peak-year births | 57 | 34 | 22,252 |
Kazuo's usage pattern, beyond the headline number
Kazuo splits its recorded history at 1928: 24% of all births land in the more recent half, 76% in the earlier half, leaning more toward its earlier era than today's. The single quietest year was 1944 (5 births) -- compare that against the 1921 peak of 57 for a sense of just how much the name's popularity has swung.
Kazuo popularity over time
Annual U.S. births registered with the Social Security Administration · 1911–2025
- Peak year (1921)
- 57
- Annual births at peak, across 115 years of records
Kazuo by decade
1920s is the heaviest window (375 births, 49% of the file).
1920s was Kazuo's strongest decade.
375 babies received the name during that ten-year window, about 49% of all-time use.
Kazuo births by decade
Total births in each ten-year window
- 1910s
1910s
241 births
- 1920s
1920s
375 births
- 1930s 106
1930s
106 births
- 1940s 11
1940s
11 births
- 2000s 24
2000s
24 births
- 2020s 5
2020s
5 births
What this shows Peak: 1920s at 375 births (49% of all-time use).
How Kazuo 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 Kazuo's total volume
Kazuo by state
Where Kazuo concentrates geographically, total births since 1911
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Hawaii | | 299 | 39.2% |
| #2 | California | | 285 | 37.4% |
| #3 | Washington | | 15 | 2.0% |
299 of 762 births nationwide. Compared to a flat distribution across 3 reporting states.
Frequently Asked Questions
How popular is the name Kazuo? ▼
Where does Kazuo sit in the SSA name archive? ▼
When was Kazuo most popular? ▼
Where is Kazuo most popular? ▼
How long has the name Kazuo been used? ▼
What names are similar to Kazuo? ▼
What to do with Kazuo's data
- Kazuo's decade-level peak was the 1920s (375 total births); usage has since declined to 5 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Hawaii records the most Kazuos (299 births) -- see the full state breakdown if geography matters to your decision. Hawaii names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Kazuo
Nearby Names Like Kazuo
Names with a similar sound, spelling, or feel to Kazuo
Compare Kazuo side by side: Kazuo vs Kaz Kazuo vs Kazi Kazuo vs Kazuki
Related Names
Names with a similar popularity rank to Kazuo
Nationwide names with similar peak year or record span
Two nationwide peer axes for Kazuo: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1921)
Similar record span (~114 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, 1911–2025 (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 Kazuo 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.