Kai vs Lukas

Baby Name Comparison — 2026

Kai

Boy #76 Most Popular 1 Syllable

"sea"

Origin: Hawaiian

Hawaiian Scandinavian Japanese American Chinese

✓ All Clear

Boy #268 Most Popular 2 Syllables

"light, illumination"

Origin: Greek and Latin

German Scandinavian Polish Czech Slovak Dutch

✓ All Clear

Kai Rank #76

Lukas Rank #268

Kai is more popular, ranked #76 vs #268 for Lukas.

Is Kai or Lukas more popular?

Kai is more popular, ranked #76 compared to Lukas at #268 in the United States.

What do Kai and Lukas mean?

Kai means "sea" (Hawaiian origin). Lukas means "light, illumination" (Greek and Latin origin).

Are Kai and Lukas boy or girl names?

Kai is primarily a boy name. Lukas is primarily a boy name.