Kayzen vs Sully

Baby Name Comparison — 2026

Kayzen

Boy #3,590 Most Popular 2 Syllables

"continuous improvement"

Origin: Japanese-inspired American

American English

✓ All Clear

Boy #3,579 Most Popular 2 Syllables

"descendant of the dark-eyed one"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Kayzen Rank #3,590

Sully Rank #3,579

Sully is more popular, ranked #3579 vs #3590 for Kayzen.

Is Kayzen or Sully more popular?

Sully is more popular, ranked #3579 compared to Kayzen at #3590 in the United States.

What do Kayzen and Sully mean?

Kayzen means "continuous improvement" (Japanese-inspired American origin). Sully means "descendant of the dark-eyed one" (Irish Gaelic origin).

Are Kayzen and Sully boy or girl names?

Kayzen is primarily a boy name. Sully is primarily a boy name.