Kaius vs Eider

Baby Name Comparison — 2026

Kaius

Boy #1,137 Most Popular 3 Syllables

"rejoice, be glad"

Origin: Latin

Latin Scandinavian Finnish

✓ All Clear

Boy #1,022 Most Popular 2 Syllables

"from the Eider river"

Origin: Germanic/Nordic

Basque German Scandinavian

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Kaius Rank #1,137

Eider Rank #1,022

Eider is more popular, ranked #1022 vs #1137 for Kaius.

Is Kaius or Eider more popular?

Eider is more popular, ranked #1022 compared to Kaius at #1137 in the United States.

What do Kaius and Eider mean?

Kaius means "rejoice, be glad" (Latin origin). Eider means "from the Eider river" (Germanic/Nordic origin).

Are Kaius and Eider boy or girl names?

Kaius is primarily a boy name. Eider is primarily a boy name.