Theo vs Kai

Baby Name Comparison — 2026

Theo

Boy #80 Most Popular 2 Syllables

"gift of God"

Origin: Greek (theodoros)

English Greek French German American

✓ All Clear

Boy #76 Most Popular 1 Syllable

"sea"

Origin: Hawaiian

Hawaiian Scandinavian Japanese American Chinese

✓ All Clear

Theo Rank #80

Kai Rank #76

Kai is more popular, ranked #76 vs #80 for Theo.

Is Theo or Kai more popular?

Kai is more popular, ranked #76 compared to Theo at #80 in the United States.

What do Theo and Kai mean?

Theo means "gift of God" (Greek (theodoros) origin). Kai means "sea" (Hawaiian origin).

Are Theo and Kai boy or girl names?

Theo is primarily a boy name. Kai is primarily a boy name.