Cayson vs Rex

Baby Name Comparison — 2026

Cayson

Boy #764 Most Popular 2 Syllables

"healer (via Jason)"

Origin: Greek

American

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Cayson Rank #764

Rex Rank #793

Cayson is more popular, ranked #764 vs #793 for Rex.

Is Cayson or Rex more popular?

Cayson is more popular, ranked #764 compared to Rex at #793 in the United States.

What do Cayson and Rex mean?

Cayson means "healer (via Jason)" (Greek origin). Rex means "king" (Latin origin).

Are Cayson and Rex boy or girl names?

Cayson is primarily a boy name. Rex is primarily a boy name.