Kyzen
How to say it: KY-zun · /ˈkaɪzən/
Modern American invention, possibly inspired by Japanese 'kaizen' improvement; - bold new coinage for boys.
Kyzen was the 342nd most popular boys’ name in the United States in 2025, given to 91 babies (Social Security Administration). The 2020s are its busiest decade so far, its births are up 14-fold in ten years, and it is projected to rise to #65 by 2030.
Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #342 |
|---|---|
| Babies born in 2025 | 91 |
| Share of births | 1 in 3,362 |
| Peak decade | 2020s |
| Change over 10 years | ×14 |
| Projected rank for 2030 (estimate) | #65 |
| In France, 2025 | #1,330 among boys’ names, 0 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Kyzen is a newcomer: almost all of its history is from the last forty years.
What goes with it
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Kyzen is about 1 in 141.
Around the world
This spelling is used in English.
In France: #1,330 for boys in 2025.
Keep exploring
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