Unisex name · since 1921
Seiko
Since 1921, U.S. Social Security records show 24 babies named Seiko, peaking in 1924. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #27,643 of 45,481
- all-time among boys
- 24
- born since 1921
- 1920s
- peak decade
Seiko sits outside today's top ranks for boys, with 24 recorded since 1921.
According to the U.S. Social Security Administration, Seiko has been recorded 24 times among boys since 1921, 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 1921 to 1925.
- #27,643 of 45,481 all-time among boys
- 24 born since 1921
- 1920s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Seiko ranks #27,643 of 45,481 boys' names by all-time recorded births (highest first). 24 born since 1921, peaking in the 1920s.
- #27,643 of 45,481
- all-time among boys
- 24
- born since 1921
- 1920s
- peak decade
Seiko's 24 recorded births place it above 39.11% of the 45,481 boys names in the full SSA archive.
The state file records this name in 1 jurisdictions, led by Hawaii.
Seiko's usage pattern, beyond the headline number
Splitting Seiko's full recorded timeline at 1924, 50% of its total births fall in the more recent half of the record versus 50% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1925, with just 5 recorded births -- worth weighing against the 1924 peak of 7 to see the full range of the name's swing in popularity.
Seiko popularity over time - boys
Annual U.S. births registered with the Social Security Administration · 1921–1925
- Peak year (1924)
- 7
- Annual births at peak, across 5 years of records
Seiko popularity over time - girls
11 total births recorded since 1919 (Seiko as girls' name)
Seiko by decade
1920s is the heaviest window (24 births, 100% of the file).
1920s was Seiko's strongest decade.
24 babies received the name during that ten-year window, about 100% of all-time use.
Seiko births by decade
Total births in each ten-year window
- 1920s
1920s
24 births
What this shows Peak: 1920s at 24 births (100% of all-time use).
Seiko by state
Where Seiko concentrates geographically, total births since 1921
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Hawaii | | 23 | 95.8% |
23 of 24 births nationwide.
Frequently Asked Questions
How popular is the name Seiko? ▼
Where does Seiko sit in the SSA name archive? ▼
When was Seiko most popular? ▼
Where is Seiko most popular? ▼
Is Seiko a unisex name? ▼
How long has the name Seiko been used? ▼
What names are similar to Seiko? ▼
What to do with Seiko's data
- Hawaii records the most Seikos (23 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 Seiko
Nearby Names Like Seiko
Names with a similar sound, spelling, or feel to Seiko
Compare Seiko side by side: Seiko vs Seiji Seiko vs Seif Seiko vs Seichi
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Seiko: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1924)
Similar record span (~4 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, 1921–1925 (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 Seiko 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.