Total births
821
Girls' name · since 1909
Masako
821 babies named Masako in U.S. Social Security records since 1909, with the highest year being 1921. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 821
- total births
- 1909–1993
- years on record
- 1920s
- peak decade
- 47%
- born in that decade
Masako is not among the current top-ranked girls names; 821 have been recorded since 1909.
According to the U.S. Social Security Administration, Masako has been recorded 821 times among girls since 1909, though it is not among the currently most-used girls 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 1909 to 1993.
- 821 total births
- 1909–1993 years on record
- 1920s peak decade
- 47% born in that decade
Data updated Jun 2026
The verdict
821 girls have been named Masako since 1909, peaking in the 1920s, last recorded in 1993.
- 821
- total births
- 1909–1993
- years on record
- 1920s
- peak decade
- 47%
- born in that decade
1920s
Peak decade
47% of everyone ever named Masako was born in this single decade.
1921
Single peak year
58 babies were named Masako in 1921 - its busiest year on record.
Masako's usage pattern, beyond the headline number
Divide Masako's SSA record in two at 1926 and the more recent half accounts for 31% of all births, the earlier half the remaining 69%, consistent with a name more common in the past than in recent years. Its calmest year was 1940, with only 5 births recorded -- set against the 1921 peak of 58, that's the full swing in one name's fortunes.
Masako at a glance
Last recorded 1993Peak year
1921
Current rank
Unranked
Active since
1909
Masako popularity over time
Annual U.S. births registered with the Social Security Administration · 1909–1993
- Peak year (1921)
- 58
- Annual births at peak, across 85 years of records
Masako by decade
Total births in each ten-year window, peak vs trough at a glance
1920s was Masako's strongest decade.
386 babies received the name during that ten-year window, about 47% of all-time use.
Masako births by decade
Total births in each ten-year window
- 1900s 6
1900s
6 births
- 1910s
1910s
293 births
- 1920s
1920s
386 births
- 1930s 109
1930s
109 births
- 1940s 10
1940s
10 births
- 1970s 12
1970s
12 births
- 1990s 5
1990s
5 births
What this shows Peak: 1920s at 386 births (47% of all-time use).
How Masako compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Masako's total volume
Masako vs 15 similarly-sized girls names
Masako by state
Where Masako concentrates geographically, total births since 1909
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Hawaii | | 349 | 42.5% |
| #2 | California | | 298 | 36.3% |
| #3 | Washington | | 37 | 4.5% |
Hawaii share of Masako's total US births 42.5%
Even split
349 of 821 births nationwide. Compared to a flat distribution across 3 reporting states.
Frequently Asked Questions
How popular is the name Masako? ▼
821 babies have been named Masako since 1909. It was last recorded in 1993. The peak year was 1921 with 58 births.
When was Masako most popular? ▼
Masako was most popular in the 1920s decade with 386 total births. The single peak year was 1921.
Where is Masako most popular? ▼
The top states for the name Masako are Hawaii (349 births), California (298 births), Washington (37 births).
How long has the name Masako been used? ▼
Records for Masako go back to 1909, giving 85 years of history through 1993.
What names are similar to Masako? ▼
Names with a similar sound or spelling include Mason, Massiel, Masyn, Masha, and 4 more. These share a common prefix and are also used for girls.
What to do with Masako's data
- Masako's decade-level peak was the 1920s (386 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.
- Hawaii records the most Masakos (349 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 Masako
Nearby Names Like Masako
Names with a similar sound, spelling, or feel to Masako
Mason Girl
#3134 3,348 births
Massiel Girl
#7008 797 births
Masyn Girl
#4264 738 births
Masha Girl
#4406 571 births
Masa Girl
#2985 533 births
Compare Masako side by side: Masako vs Mason Masako vs Massiel Masako vs Masyn
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, 1909–1993 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Masako: Baby Name Since 1909 - 821 Births, Peak 1921." NameAlmanac. Accessed via https://namealmanac.com/name/masako. 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 Masako 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.