Neo vs Rex

Baby Name Comparison — 2026

Neo

Boy #972 Most Popular 2 Syllables

"new"

Origin: Greek neos

American European African Setswana

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Neo Rank #972

Rex Rank #793

Rex is more popular, ranked #793 vs #972 for Neo.

Is Neo or Rex more popular?

Rex is more popular, ranked #793 compared to Neo at #972 in the United States.

What do Neo and Rex mean?

Neo means "new" (Greek neos origin). Rex means "king" (Latin origin).

Are Neo and Rex boy or girl names?

Neo is primarily a boy name. Rex is primarily a boy name.