Jon vs Rex

Baby Name Comparison — 2026

Jon

Boy #893 Most Popular 1 Syllable

"God is gracious"

Origin: Hebrew

American Scandinavian Welsh English

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Jon Rank #893

Rex Rank #793

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

Is Jon or Rex more popular?

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

What do Jon and Rex mean?

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

Are Jon and Rex boy or girl names?

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