Rex vs Khai

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #949 Most Popular 1 Syllable

"triumphant, victorious"

Origin: Vietnamese

Vietnamese American Arabic

✓ All Clear

Rex Rank #793

Khai Rank #949

Rex is more popular, ranked #793 vs #949 for Khai.

Is Rex or Khai more popular?

Rex is more popular, ranked #793 compared to Khai at #949 in the United States.

What do Rex and Khai mean?

Rex means "king" (Latin origin). Khai means "triumphant, victorious" (Vietnamese origin).

Are Rex and Khai boy or girl names?

Rex is primarily a boy name. Khai is primarily a boy name.