Rex vs Mylo

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #643 Most Popular 2 Syllables

"merciful, gentle"

Origin: Old High German (mild)

English American Australian

✓ All Clear

Rex Rank #793

Mylo Rank #643

Mylo is more popular, ranked #643 vs #793 for Rex.

Is Rex or Mylo more popular?

Mylo is more popular, ranked #643 compared to Rex at #793 in the United States.

What do Rex and Mylo mean?

Rex means "king" (Latin origin). Mylo means "merciful, gentle" (Old High German (mild) origin).

Are Rex and Mylo boy or girl names?

Rex is primarily a boy name. Mylo is primarily a boy name.