Caius vs Kellen

Baby Name Comparison — 2026

Caius

Boy #1,063 Most Popular 2 Syllables

"to rejoice, joyful"

Origin: Latin

Roman British European American

✓ All Clear

Boy #1,031 Most Popular 2 Syllables

"slender, narrow"

Origin: Irish Gaelic 'caol'

Irish American German

✓ All Clear

Caius Rank #1,063

Kellen Rank #1,031

Kellen is more popular, ranked #1031 vs #1063 for Caius.

Is Caius or Kellen more popular?

Kellen is more popular, ranked #1031 compared to Caius at #1063 in the United States.

What do Caius and Kellen mean?

Caius means "to rejoice, joyful" (Latin origin). Kellen means "slender, narrow" (Irish Gaelic 'caol' origin).

Are Caius and Kellen boy or girl names?

Caius is primarily a boy name. Kellen is primarily a boy name.