Rex vs Darius

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #746 Most Popular 3 Syllables

"he who holds firm the good"

Origin: Old Persian

Persian Greek Roman American African American

✓ All Clear

Rex Rank #793

Darius Rank #746

Darius is more popular, ranked #746 vs #793 for Rex.

Is Rex or Darius more popular?

Darius is more popular, ranked #746 compared to Rex at #793 in the United States.

What do Rex and Darius mean?

Rex means "king" (Latin origin). Darius means "he who holds firm the good" (Old Persian origin).

Are Rex and Darius boy or girl names?

Rex is primarily a boy name. Darius is primarily a boy name.