Jefferson vs Rex

Baby Name Comparison — 2026

Jefferson

Boy #711 Most Popular 3 Syllables

"son of Jeffrey, son of God's peace"

Origin: Old English via Germanic

American English

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Jefferson Rank #711

Rex Rank #793

Jefferson is more popular, ranked #711 vs #793 for Rex.

Is Jefferson or Rex more popular?

Jefferson is more popular, ranked #711 compared to Rex at #793 in the United States.

What do Jefferson and Rex mean?

Jefferson means "son of Jeffrey, son of God's peace" (Old English via Germanic origin). Rex means "king" (Latin origin).

Are Jefferson and Rex boy or girl names?

Jefferson is primarily a boy name. Rex is primarily a boy name.