Total births
376
Boys' name · since 1912
Haruo
Since 1912, U.S. Social Security records show 376 babies named Haruo, peaking in 1921. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- 376
- total births
- 1912–1937
- years on record
- 1920s
- peak decade
- 53%
- born in that decade
Haruo is not among the current top-ranked boys names; 376 have been recorded since 1912.
Haruo has 376 recorded births among boys since 1912, per the U.S. Social Security Administration, though it falls outside today's most-used boys names, busiest in the 1920s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1912 to 1937.
- 376 total births
- 1912–1937 years on record
- 1920s peak decade
- 53% born in that decade
Data updated Jul 2026
The verdict
376 boys have been named Haruo since 1912, peaking in the 1920s, last recorded in 1937.
- 376
- total births
- 1912–1937
- years on record
- 1920s
- peak decade
- 53%
- born in that decade
1920s
Peak decade
53% of everyone ever named Haruo was born in this single decade.
1921
Single peak year
32 babies were named Haruo in 1921 - its busiest year on record.
Haruo's usage pattern, beyond the headline number
Haruo splits its recorded history at 1925: 38% of all births land in the more recent half, 62% in the earlier half, leaning more toward its earlier era than today's. The single quietest year was 1912 (5 births) -- compare that against the 1921 peak of 32 for a sense of just how much the name's popularity has swung.
Haruo at a glance
Last recorded 1937Peak year
1921
Current rank
Unranked
Active since
1912
Haruo popularity over time
Annual U.S. births registered with the Social Security Administration · 1912–1937
- Peak year (1921)
- 32
- Annual births at peak, across 26 years of records
Haruo by decade
Total births in each ten-year window, peak vs trough at a glance
1920s was Haruo's strongest decade.
201 babies received the name during that ten-year window, about 53% of all-time use.
Haruo births by decade
Total births in each ten-year window
- 1910s
1910s
105 births
- 1920s
1920s
201 births
- 1930s 70
1930s
70 births
What this shows Peak: 1920s at 201 births (53% of all-time use).
Haruo by state
Where Haruo concentrates geographically, total births since 1912
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Hawaii | | 251 | 66.8% |
| #2 | California | | 55 | 14.6% |
Hawaii share of Haruo's total US births 66.8%
Even split
251 of 376 births nationwide. Compared to a flat distribution across 2 reporting states.
Frequently Asked Questions
How popular is the name Haruo? ▼
Since 1912, Social Security records show 376 babies named Haruo. The most recent recorded year was 1937. Its busiest year on record was 1921, with 32 births.
When was Haruo most popular? ▼
Haruo was most popular in the 1920s decade with 201 total births. The single peak year was 1921.
Where is Haruo most popular? ▼
The top states for the name Haruo are Hawaii (251 births), California (55 births).
How long has the name Haruo been used? ▼
Records for Haruo go back to 1912, giving 26 years of history through 1937.
What names are similar to Haruo? ▼
Names with a similar sound or spelling include Harold, Harry, Harvey, Harrison, and 4 more. These share a common prefix and are also used for boys.
What to do with Haruo's data
- Haruo's usage has stayed within range of its 1920s decade-level peak (201 total births) through the 1930s (70) -- a comparatively stable name, not a fading trend.
- Hawaii records the most Haruos (251 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 Haruo
Nearby Names Like Haruo
Names with a similar sound, spelling, or feel to Haruo
Harold Boy
#988 551,632 births
Harry Boy
#775 423,866 births
Harvey Boy
#245 127,925 births
Harrison Boy
#121 99,138 births
Harley Boy
#1019 40,705 births
Compare Haruo side by side: Haruo vs Harold Haruo vs Harry Haruo vs Harvey
Related Names
Names with a similar number of total births
Data Sources
Data as of July 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, 1912–1937 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Haruo: Baby Name Since 1912 - 376 Births, Peak 1921." NameAlmanac. Accessed via https://namealmanac.com/name/haruo. 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 Haruo 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 July 2026.