Rex vs Rey

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #823 Most Popular 1 Syllable

"king"

Origin: Spanish

Spanish Latin American American

✓ All Clear

Rex Rank #793

Rey Rank #823

Rex is more popular, ranked #793 vs #823 for Rey.

Is Rex or Rey more popular?

Rex is more popular, ranked #793 compared to Rey at #823 in the United States.

What do Rex and Rey mean?

Rex means "king" (Latin origin). Rey means "king" (Spanish origin).

Are Rex and Rey boy or girl names?

Rex is primarily a boy name. Rey is primarily a boy name.