Kai vs Jacob

Baby Name Comparison — 2026

Kai

Boy #76 Most Popular 1 Syllable

"sea"

Origin: Hawaiian

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Boy #41 Most Popular 2 Syllables

"Supplanter; one who follows at the heel"

Origin: Hebrew

English Jewish German Dutch Scandinavian

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Kai Rank #76

Jacob Rank #41

Jacob is more popular, ranked #41 vs #76 for Kai.

Is Kai or Jacob more popular?

Jacob is more popular, ranked #41 compared to Kai at #76 in the United States.

What do Kai and Jacob mean?

Kai means "sea" (Hawaiian origin). Jacob means "Supplanter; one who follows at the heel" (Hebrew origin).

Are Kai and Jacob boy or girl names?

Kai is primarily a boy name. Jacob is primarily a boy name.