Kaisei vs Kairo

Side-by-side comparison of Kaisei and Kairo — popularity rank, total births, peak decade, and historical trends from Social Security Administration data.

Name A

Kaisei

Boy name · Rank #8719

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Name B

Kairo

Boy name · Rank #238

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Which name is more popular?

Metric Kaisei Kairo
Current Rank #8719 #238
Total Births (all years) 131 9,637
Peak Year 2007 2023
Peak Year Births 10 1,488
Peak Decade 2010ss 2020ss
Gender Boy Boy
First Recorded Year 2005 1995

Births by Decade

Decade Kaisei Kairo
1990ss — 48
2000ss 33 208
2010ss 70 2,491
2020ss 28 6,890

Recent Annual Births (2014–present)

Year Kaisei Kairo
2014 9 72
2015 7 82
2016 6 153
2017 9 285
2018 5 608
2019 9 1,109
2020 — 1,194
2021 6 1,316
2022 7 1,414
2023 6 1,488
2024 9 1,478

Data Sources

Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, ssa.gov/oact/babynames.
Source: SSA Annual Name Rankings, 2005–2024.

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