Zack vs Rex

Baby Name Comparison — 2026

Zack

Boy #1,388 Most Popular 1 Syllable

"God has remembered"

Origin: Hebrew

English American Hebrew

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Zack Rank #1,388

Rex Rank #793

Rex is more popular, ranked #793 vs #1388 for Zack.

Is Zack or Rex more popular?

Rex is more popular, ranked #793 compared to Zack at #1388 in the United States.

What do Zack and Rex mean?

Zack means "God has remembered" (Hebrew origin). Rex means "king" (Latin origin).

Are Zack and Rex boy or girl names?

Zack is primarily a boy name. Rex is primarily a boy name.