Duke vs Rex

Baby Name Comparison — 2026

Duke

Boy #710 Most Popular 1 Syllable

"leader, military commander"

Origin: Latin

American English Australian

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Duke Rank #710

Rex Rank #793

Duke is more popular, ranked #710 vs #793 for Rex.

Is Duke or Rex more popular?

Duke is more popular, ranked #710 compared to Rex at #793 in the United States.

What do Duke and Rex mean?

Duke means "leader, military commander" (Latin origin). Rex means "king" (Latin origin).

Are Duke and Rex boy or girl names?

Duke is primarily a boy name. Rex is primarily a boy name.