Kai vs Ethan

Baby Name Comparison — 2026

Kai

Boy #76 Most Popular 1 Syllable

"sea"

Origin: Hawaiian

Hawaiian Scandinavian Japanese American Chinese

✓ All Clear

Boy #19 Most Popular 2 Syllables

"permanent, long-lived"

Origin: Hebrew

English American Jewish Christian

✓ All Clear

Kai Rank #76

Ethan Rank #19

Ethan is more popular, ranked #19 vs #76 for Kai.

Is Kai or Ethan more popular?

Ethan is more popular, ranked #19 compared to Kai at #76 in the United States.

What do Kai and Ethan mean?

Kai means "sea" (Hawaiian origin). Ethan means "permanent, long-lived" (Hebrew origin).

Are Kai and Ethan boy or girl names?

Kai is primarily a boy name. Ethan is primarily a boy name.