Kai vs Arlo

Baby Name Comparison — 2026

Kai

Boy #76 Most Popular 1 Syllable

"sea"

Origin: Hawaiian

Hawaiian Scandinavian Japanese American Chinese

✓ All Clear

Boy #146 Most Popular 2 Syllables

"fortified hill"

Origin: Old English

English American Australian

✓ All Clear

Kai Rank #76

Arlo Rank #146

Kai is more popular, ranked #76 vs #146 for Arlo.

Is Kai or Arlo more popular?

Kai is more popular, ranked #76 compared to Arlo at #146 in the United States.

What do Kai and Arlo mean?

Kai means "sea" (Hawaiian origin). Arlo means "fortified hill" (Old English origin).

Are Kai and Arlo boy or girl names?

Kai is primarily a boy name. Arlo is primarily a boy name.