Boys' name · since 2001
Kaiyu
Since 2001, U.S. Social Security records show 98 babies named Kaiyu, peaking in 2001. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #17,542 of 45,481
- all-time among boys
- #12,807 of 13,930
- 2025 SSA year
- 98
- born since 2001
- 2000s
- peak decade
Kaiyu currently ranks #12807 among boys' names in America, with 98 babies recorded since 2001.
Kaiyu has 98 recorded births among boys since 2001, per the U.S. Social Security Administration, ranked #12807 as of the latest data, more common than 8% of boys, busiest in the 2000s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 2001 to 2025.
- #17,542 of 45,481 all-time among boys
- #12,807 of 13,930 2025 SSA year
- 98 born since 2001
- 2000s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Kaiyu ranks #17,542 of 45,481 boys' names by all-time recorded births (highest first) and #12,807 of 13,930 among boys' names in 2025. 98 born since 2001, peaking in the 2000s.
- #17,542 of 45,481
- all-time among boys
- #12,807 of 13,930
- 2025 SSA year
- 98
- born since 2001
- 2000s
- peak decade
Kaiyu's 98 recorded births place it above 61.35% of the 45,481 boys names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
How Kaiyu compares
98 26th percentile among 13,930 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Kaiyu's all-time total is 73% below the median boys name, and Liam still leads by a wide margin.
| Metric | Kaiyu | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 98 | 369 | 358,536 |
| Peak-year births | 10 | 34 | 22,252 |
Kaiyu's usage pattern, beyond the headline number
Divide Kaiyu's SSA record in two at 2009 and the more recent half accounts for 42% of all births, the earlier half the remaining 58%, a genuinely balanced usage pattern. Its calmest year was 2005, with only 5 births recorded -- set against the 2001 peak of 10, that's the full swing in one name's fortunes.
Kaiyu popularity over time
Annual U.S. births registered with the Social Security Administration · 2001–2025
- Peak year (2001)
- 10
- Annual births at peak, across 25 years of records
Kaiyu by decade
2000s is the heaviest window (63 births, 64% of the file).
2000s was Kaiyu's strongest decade.
63 babies received the name during that ten-year window, about 64% of all-time use.
Kaiyu births by decade
Total births in each ten-year window
- 2000s
2000s
63 births
- 2010s 25
2010s
25 births
- 2020s 10
2020s
10 births
What this shows Peak: 2000s at 63 births (64% of all-time use).
Frequently Asked Questions
How popular is the name Kaiyu? ▼
Where does Kaiyu sit in the SSA name archive? ▼
When was Kaiyu most popular? ▼
How long has the name Kaiyu been used? ▼
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What to do with Kaiyu's data
- Kaiyu's decade-level peak was the 2000s (63 total births); usage has since declined to 10 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Kaiyu
Nearby Names Like Kaiyu
Names with a similar sound, spelling, or feel to Kaiyu
Compare Kaiyu side by side: Kaiyu vs Kai Kaiyu vs Kaiden Kaiyu vs Kairo
Related Names
Names with a similar popularity rank to Kaiyu
Nationwide names with similar peak year or record span
Two nationwide peer axes for Kaiyu: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2001)
Similar record span (~24 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, 2001–2025 (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 Kaiyu 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.