Kase vs Rex

Baby Name Comparison — 2026

Kase

Boy #967 Most Popular 1 Syllable

"watchful, vigilant (via Casey)"

Origin: Irish Gaelic Cathasaigh

American English

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Kase Rank #967

Rex Rank #793

Rex is more popular, ranked #793 vs #967 for Kase.

Is Kase or Rex more popular?

Rex is more popular, ranked #793 compared to Kase at #967 in the United States.

What do Kase and Rex mean?

Kase means "watchful, vigilant (via Casey)" (Irish Gaelic Cathasaigh origin). Rex means "king" (Latin origin).

Are Kase and Rex boy or girl names?

Kase is primarily a boy name. Rex is primarily a boy name.