Rex vs Castiel

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #817 Most Popular 3 Syllables

"speed of God"

Origin: Hebrew

American Jewish Christian

✓ All Clear

Rex Rank #793

Castiel Rank #817

Rex is more popular, ranked #793 vs #817 for Castiel.

Is Rex or Castiel more popular?

Rex is more popular, ranked #793 compared to Castiel at #817 in the United States.

What do Rex and Castiel mean?

Rex means "king" (Latin origin). Castiel means "speed of God" (Hebrew origin).

Are Rex and Castiel boy or girl names?

Rex is primarily a boy name. Castiel is primarily a boy name.