Rex vs Jon

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #893 Most Popular 1 Syllable

"God is gracious"

Origin: Hebrew

American Scandinavian Welsh English

✓ All Clear

Rex Rank #793

Jon Rank #893

Rex is more popular, ranked #793 vs #893 for Jon.

Is Rex or Jon more popular?

Rex is more popular, ranked #793 compared to Jon at #893 in the United States.

What do Rex and Jon mean?

Rex means "king" (Latin origin). Jon means "God is gracious" (Hebrew origin).

Are Rex and Jon boy or girl names?

Rex is primarily a boy name. Jon is primarily a boy name.