Total births
268
Boys' name · since 1915
Tetsuo
268 babies named Tetsuo in U.S. Social Security records since 1915, with the highest year being 1924. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 268
- total births
- 1915–1944
- years on record
- 1920s
- peak decade
- 67%
- born in that decade
268 boys have been named Tetsuo since 1915, though it isn't currently a top-ranked name.
Social Security Administration records show Tetsuo recorded 268 times among boys since 1915, though it doesn't currently rank among the most-used boys names, peaking in the 1920s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1915 to 1944.
- 268 total births
- 1915–1944 years on record
- 1920s peak decade
- 67% born in that decade
Data updated Jun 2026
The verdict
268 boys have been named Tetsuo since 1915, peaking in the 1920s, last recorded in 1944.
- 268
- total births
- 1915–1944
- years on record
- 1920s
- peak decade
- 67%
- born in that decade
1920s
Peak decade
67% of everyone ever named Tetsuo was born in this single decade.
1924
Single peak year
26 babies were named Tetsuo in 1924 - its busiest year on record.
Tetsuo's usage pattern, beyond the headline number
Divide Tetsuo's SSA record in two at 1925 and the more recent half accounts for 44% of all births, the earlier half the remaining 56%, a genuinely balanced usage pattern. Its calmest year was 1944, with only 5 births recorded -- set against the 1924 peak of 26, that's the full swing in one name's fortunes.
Tetsuo at a glance
Last recorded 1944Peak year
1924
Current rank
Unranked
Active since
1915
Tetsuo popularity over time
Annual U.S. births registered with the Social Security Administration · 1915–1944
- Peak year (1924)
- 26
- Annual births at peak, across 30 years of records
Tetsuo by decade
Total births in each ten-year window, peak vs trough at a glance
1920s was Tetsuo's strongest decade.
179 babies received the name during that ten-year window, about 67% of all-time use.
Tetsuo births by decade
Total births in each ten-year window
- 1910s 49
1910s
49 births
- 1920s
1920s
179 births
- 1930s 35
1930s
35 births
- 1940s 5
1940s
5 births
What this shows Peak: 1920s at 179 births (67% of all-time use).
Tetsuo by state
Where Tetsuo concentrates geographically, total births since 1915
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Hawaii | | 130 | 48.5% |
| #2 | California | | 65 | 24.3% |
Hawaii share of Tetsuo's total US births 48.5%
Even split
130 of 268 births nationwide. Compared to a flat distribution across 2 reporting states.
Frequently Asked Questions
How popular is the name Tetsuo? ▼
268 babies have been named Tetsuo since 1915. It was last recorded in 1944. The peak year was 1924 with 26 births.
When was Tetsuo most popular? ▼
Tetsuo was most popular in the 1920s decade with 179 total births. The single peak year was 1924.
Where is Tetsuo most popular? ▼
The top states for the name Tetsuo are Hawaii (130 births), California (65 births).
How long has the name Tetsuo been used? ▼
The SSA has tracked Tetsuo since 1915 -- 30 years through the most recent 1944 data.
What names are similar to Tetsuo? ▼
Names with a similar sound or spelling include Tetsuya, Tetsuro, Tetsu. These share a common prefix and are also used for boys.
What to do with Tetsuo's data
- Tetsuo's decade-level peak was the 1920s (179 total births); usage has since declined to 5 in the 1940s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Hawaii records the most Tetsuos (130 births) -- see the full state breakdown if geography matters to your decision. Hawaii names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Tetsuo
Nearby Names Like Tetsuo
Names with a similar sound, spelling, or feel to Tetsuo
Compare Tetsuo side by side: Tetsuo vs Tetsuya Tetsuo vs Tetsuro Tetsuo vs Tetsu
Related Names
Names with a similar number of total births
Data Sources
Data as of June 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, 1915–1944 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Tetsuo: Baby Name Since 1915 - 268 Births, Peak 1924." NameAlmanac. Accessed via https://namealmanac.com/name/tetsuo. Licensed CC BY-SA 4.0.
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 Tetsuo 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 June 2026.