Kaizen Boy
How popular is Kaizen?
#364 boy name in 2025
895 baby boys were named Kaizen in the US in 2025, making it the 364th most popular boy name. Another 5 girls got the name (#14,938 for girls).
Kaizen popularity over time
Boys Girls
| Rank in 2025 | #364 for boys (▲ 138 from 2024) |
|---|---|
| Babies in 2025 | 895 boys, 5 girls |
| 10-year trend | Rising fast (+1498% babies vs 2015) |
| Earlier ranks | #2,327 in 2015, #1,579 in 2020 |
| Peak year | 2025 (895 boys) |
| Highest rank | #364 in 2025 |
| First recorded | 2004 |
| Boys vs girls (last 10 years) | 99% boys, 1% girls |
| Chance a classmate shares it | 0.6% in a class of 25 kids born in 2025 |
Kaizen counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Kayson family of names ranked #44 for boys in 2025 (#54 the year before), with 6,536 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Kayson | 1,305 | 20% |
| Kason | 480 | 7% |
| Kasen | 622 | 10% |
| Kaison | 557 | 9% |
| Kaysen | 772 | 12% |
| Cason | 291 | 4% |
| Cayson | 296 | 5% |
| Casen | 293 | 4% |
| Kaizen | 895 | 14% |
| Kaisen | 311 | 5% |
| Caysen | 143 | 2% |
| Kasyn | 89 | 1% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Kaizen is most popular
Babies named Kaizen per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Hawaii: 4.5 per 1,000 (70 boys)
- Mississippi: 0.8 per 1,000 (47 boys)
- Louisiana: 0.8 per 1,000 (78 boys)
- Alabama: 0.6 per 1,000 (61 boys)
- Arkansas: 0.6 per 1,000 (35 boys)
Kaizen by decade
Boy names about as popular as Kaizen
Questions
- Is Kaizen a boy or girl name?
- Kaizen is mostly a boy name. Over the last 10 years, 99% of babies named Kaizen were boys.
- How popular is the name Kaizen?
- 895 baby boys were named Kaizen in the US in 2025, making it the 364th most popular boy name. Another 5 girls got the name (#14,938 for girls).
- When was Kaizen most popular?
- Kaizen peaked in 2025, when 895 boys were given the name. Its highest rank was #364 in 2025.
- How many people are named Kaizen?
- 3,070 babies have been named Kaizen in the US since 1880. We estimate about 3,062 of them are alive in 2026, with a median age of 3.
- Where is Kaizen most popular?
- From 2021 to 2025, Kaizen was most common in Hawaii, at 4.5 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.