Caius vs Guy

Baby Name Comparison — 2026

Caius

Boy #1,063 Most Popular 2 Syllables

"to rejoice, joyful"

Origin: Latin

Roman British European American

✓ All Clear

Boy #1,562 Most Popular 1 Syllable

"forest"

Origin: Germanic

English French Norman

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Caius Rank #1,063

Guy Rank #1,562

Caius is more popular, ranked #1063 vs #1562 for Guy.

Is Caius or Guy more popular?

Caius is more popular, ranked #1063 compared to Guy at #1562 in the United States.

What do Caius and Guy mean?

Caius means "to rejoice, joyful" (Latin origin). Guy means "forest" (Germanic origin).

Are Caius and Guy boy or girl names?

Caius is primarily a boy name. Guy is primarily a boy name.