Kaius vs Kay

Baby Name Comparison — 2026

Kaius

Boy #1,137 Most Popular 3 Syllables

"rejoice, be glad"

Origin: Latin

Latin Scandinavian Finnish

✓ All Clear

Boy #6,417 Most Popular 1 Syllable

"rejoice; pure"

Origin: Latin

English American Welsh

✓ All Clear

Kaius Rank #1,137

Kay Rank #6,417

Kaius is more popular, ranked #1137 vs #6417 for Kay.

Is Kaius or Kay more popular?

Kaius is more popular, ranked #1137 compared to Kay at #6417 in the United States.

What do Kaius and Kay mean?

Kaius means "rejoice, be glad" (Latin origin). Kay means "rejoice; pure" (Latin origin).

Are Kaius and Kay boy or girl names?

Kaius is primarily a boy name. Kay is primarily a boy name.