Cain vs Caius

Baby Name Comparison — 2026

Cain

Boy #979 Most Popular 1 Syllable

"acquired, possessed"

Origin: Hebrew

English Welsh American

✓ All Clear

Boy #1,063 Most Popular 2 Syllables

"to rejoice, joyful"

Origin: Latin

Roman British European American

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Cain Rank #979

Caius Rank #1,063

Cain is more popular, ranked #979 vs #1063 for Caius.

Is Cain or Caius more popular?

Cain is more popular, ranked #979 compared to Caius at #1063 in the United States.

What do Cain and Caius mean?

Cain means "acquired, possessed" (Hebrew origin). Caius means "to rejoice, joyful" (Latin origin).

Are Cain and Caius boy or girl names?

Cain is primarily a boy name. Caius is primarily a boy name.