Kai vs Marcus

Baby Name Comparison — 2026

Kai

Boy #76 Most Popular 1 Syllable

"sea"

Origin: Hawaiian

Hawaiian Scandinavian Japanese American Chinese

✓ All Clear

Boy #256 Most Popular 2 Syllables

"of Mars, warlike"

Origin: Latin

Roman English German Scandinavian African-American

✓ All Clear

Kai Rank #76

Marcus Rank #256

Kai is more popular, ranked #76 vs #256 for Marcus.

Is Kai or Marcus more popular?

Kai is more popular, ranked #76 compared to Marcus at #256 in the United States.

What do Kai and Marcus mean?

Kai means "sea" (Hawaiian origin). Marcus means "of Mars, warlike" (Latin origin).

Are Kai and Marcus boy or girl names?

Kai is primarily a boy name. Marcus is primarily a boy name.