Rex vs Cannon

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #766 Most Popular 2 Syllables

"large gun, artillery piece"

Origin: Old French

American English

✓ All Clear

Rex Rank #793

Cannon Rank #766

Cannon is more popular, ranked #766 vs #793 for Rex.

Is Rex or Cannon more popular?

Cannon is more popular, ranked #766 compared to Rex at #793 in the United States.

What do Rex and Cannon mean?

Rex means "king" (Latin origin). Cannon means "large gun, artillery piece" (Old French origin).

Are Rex and Cannon boy or girl names?

Rex is primarily a boy name. Cannon is primarily a boy name.