Kaizen vs Sullivan

Baby Name Comparison — 2026

Kaizen

Boy #507 Most Popular 2 Syllables

"continuous improvement"

Origin: Japanese

Japanese American

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Kaizen Rank #507

Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #507 for Kaizen.

Is Kaizen or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Kaizen at #507 in the United States.

What do Kaizen and Sullivan mean?

Kaizen means "continuous improvement" (Japanese origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Kaizen and Sullivan boy or girl names?

Kaizen is primarily a boy name. Sullivan is primarily a boy name.