Kai vs Ayden

Baby Name Comparison — 2026

Kai

Boy #76 Most Popular 1 Syllable

"sea"

Origin: Hawaiian

Hawaiian Scandinavian Japanese American Chinese

✓ All Clear

Boy #213 Most Popular 2 Syllables

"little fire"

Origin: Old Irish (Aodhán)

American Irish English

✓ All Clear

Kai Rank #76

Ayden Rank #213

Kai is more popular, ranked #76 vs #213 for Ayden.

Is Kai or Ayden more popular?

Kai is more popular, ranked #76 compared to Ayden at #213 in the United States.

What do Kai and Ayden mean?

Kai means "sea" (Hawaiian origin). Ayden means "little fire" (Old Irish (Aodhán) origin).

Are Kai and Ayden boy or girl names?

Kai is primarily a boy name. Ayden is primarily a boy name.