Kaizen is an uncommon variant of Kasen that peaked in 2025 and remains in steady use.
Kaizen is predominantly a boy name. In 2025 it ranked #364 among boys (895) and #16,037 among girls (5) — overall #713 across all names. The charts below show girls and boys separately.
Boys named Kaizen per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2004–2025 · U.S.+territories from SSA territory files (1998–2025) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here
Girls named Kaizen · 5 in 2025
Girls named Kaizen per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 2004–2025 · U.S.+territories from SSA territory files (1998–2025) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here