Lukas vs Kai

Baby Name Comparison — 2026

Lukas

Boy #268 Most Popular 2 Syllables

"light, illumination"

Origin: Greek and Latin

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Boy #76 Most Popular 1 Syllable

"sea"

Origin: Hawaiian

Hawaiian Scandinavian Japanese American Chinese

✓ All Clear

Lukas Rank #268

Kai Rank #76

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

Is Lukas or Kai more popular?

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

What do Lukas and Kai mean?

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

Are Lukas and Kai boy or girl names?

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