Brock vs Rex

Baby Name Comparison — 2026

Brock

Boy #707 Most Popular 1 Syllable

"brook, small stream"

Origin: Old English

American English Australian

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Brock Rank #707

Rex Rank #793

Brock is more popular, ranked #707 vs #793 for Rex.

Is Brock or Rex more popular?

Brock is more popular, ranked #707 compared to Rex at #793 in the United States.

What do Brock and Rex mean?

Brock means "brook, small stream" (Old English origin). Rex means "king" (Latin origin).

Are Brock and Rex boy or girl names?

Brock is primarily a boy name. Rex is primarily a boy name.