Boys' name · since 1920
Osamu
Since 1920, U.S. Social Security records show 94 babies named Osamu, peaking in 1925. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #17,843 of 45,481
- all-time among boys
- 94
- born since 1920
- 1920s
- peak decade
Osamu is not among the current top-ranked boys names; 94 have been recorded since 1920.
According to the U.S. Social Security Administration, Osamu has been recorded 94 times among boys since 1920, though it is not among the currently most-used boys names, 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 1920 to 1997.
- #17,843 of 45,481 all-time among boys
- 94 born since 1920
- 1920s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Osamu ranks #17,843 of 45,481 boys' names by all-time recorded births (highest first). 94 born since 1920, peaking in the 1920s.
- #17,843 of 45,481
- all-time among boys
- 94
- born since 1920
- 1920s
- peak decade
Osamu's 94 recorded births place it above 60.73% of the 45,481 boys names in the full SSA archive.
The state file records this name in 2 jurisdictions, led by California.
Osamu's usage pattern, beyond the headline number
Osamu splits its recorded history at 1929: 45% of all births land in the more recent half, 55% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1920 (5 births) -- compare that against the 1925 peak of 11 for a sense of just how much the name's popularity has swung.
Osamu popularity over time
Annual U.S. births registered with the Social Security Administration · 1920–1997
- Peak year (1925)
- 11
- Annual births at peak, across 78 years of records
Osamu by decade
1920s is the heaviest window (58 births, 62% of the file).
1920s was Osamu's strongest decade.
58 babies received the name during that ten-year window, about 62% of all-time use.
Osamu births by decade
Total births in each ten-year window
- 1920s
1920s
58 births
- 1930s 21
1930s
21 births
- 1970s 5
1970s
5 births
- 1980s 5
1980s
5 births
- 1990s 5
1990s
5 births
What this shows Peak: 1920s at 58 births (62% of all-time use).
Osamu by state
Where Osamu concentrates geographically, total births since 1920
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 18 | 19.1% |
| #2 | Hawaii | | 8 | 8.5% |
18 of 94 births nationwide. Compared to a flat distribution across 2 reporting states.
Frequently Asked Questions
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Where does Osamu sit in the SSA name archive? ▼
When was Osamu most popular? ▼
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What to do with Osamu's data
- Osamu's decade-level peak was the 1920s (58 total births); usage has since declined to 5 in the 1990s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Osamus (18 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 Osamu
Nearby Names Like Osamu
Names with a similar sound, spelling, or feel to Osamu
Compare Osamu side by side: Osamu vs Osama Osamu vs Osaze Osamu vs Osamah
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Osamu: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1925)
Similar record span (~77 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, 1920–1997 (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 Osamu 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.