Kaizen is a distinctive boys' name in England & Wales, ranking #1610 in 2023 with 15 recorded births. The name reached its all-time peak in 2024 with 23 births ranking #1199. In 2023, approximately 1 in every 18,443 boys born was named Kaizen. RISING Recent data shows the name is currently rising.
Kaizen is used as a modern English given name, and Behind the Name links it to the Kyson family while also noting that it matches the Japanese word kaizen, meaning "improvement".
This is a very modern example of sound-based naming, where the appeal of the word itself has likely helped the name gain traction. Because more than one influence may be in play, it is best described carefully rather than treated as a simple traditional Japanese personal name.