Rex vs Kyren

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #814 Most Popular 2 Syllables

"dark, dark-haired"

Origin: Irish Gaelic

American Irish Persian

✓ All Clear

Rex Rank #793

Kyren Rank #814

Rex is more popular, ranked #793 vs #814 for Kyren.

Is Rex or Kyren more popular?

Rex is more popular, ranked #793 compared to Kyren at #814 in the United States.

What do Rex and Kyren mean?

Rex means "king" (Latin origin). Kyren means "dark, dark-haired" (Irish Gaelic origin).

Are Rex and Kyren boy or girl names?

Rex is primarily a boy name. Kyren is primarily a boy name.