Kai vs Aaron

Baby Name Comparison — 2026

Kai

Boy #76 Most Popular 1 Syllable

"sea"

Origin: Hawaiian

Hawaiian Scandinavian Japanese American Chinese

✓ All Clear

Boy #79 Most Popular 2 Syllables

"high mountain"

Origin: Hebrew (aharon)

English Hebrew Arabic American

✓ All Clear

Kai Rank #76

Aaron Rank #79

Kai is more popular, ranked #76 vs #79 for Aaron.

Is Kai or Aaron more popular?

Kai is more popular, ranked #76 compared to Aaron at #79 in the United States.

What do Kai and Aaron mean?

Kai means "sea" (Hawaiian origin). Aaron means "high mountain" (Hebrew (aharon) origin).

Are Kai and Aaron boy or girl names?

Kai is primarily a boy name. Aaron is primarily a boy name.