Rudy vs Rex

Baby Name Comparison — 2026

Rudy

Boy #822 Most Popular 2 Syllables

"famous wolf"

Origin: Germanic

American English German Italian

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Rudy Rank #822

Rex Rank #793

Rex is more popular, ranked #793 vs #822 for Rudy.

Is Rudy or Rex more popular?

Rex is more popular, ranked #793 compared to Rudy at #822 in the United States.

What do Rudy and Rex mean?

Rudy means "famous wolf" (Germanic origin). Rex means "king" (Latin origin).

Are Rudy and Rex boy or girl names?

Rudy is primarily a boy name. Rex is primarily a boy name.