Rex vs Nelson

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #778 Most Popular 2 Syllables

"son of Neil, son of the champion"

Origin: English

English American Welsh Irish

✓ All Clear

Rex Rank #793

Nelson Rank #778

Nelson is more popular, ranked #778 vs #793 for Rex.

Is Rex or Nelson more popular?

Nelson is more popular, ranked #778 compared to Rex at #793 in the United States.

What do Rex and Nelson mean?

Rex means "king" (Latin origin). Nelson means "son of Neil, son of the champion" (English origin).

Are Rex and Nelson boy or girl names?

Rex is primarily a boy name. Nelson is primarily a boy name.