Mccoy vs Rex

Baby Name Comparison — 2026

Mccoy

Boy #911 Most Popular 2 Syllables

"son of Aodh (fire)"

Origin: Irish Gaelic

American Irish Scottish

✓ All Clear

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Mccoy Rank #911

Rex Rank #793

Rex is more popular, ranked #793 vs #911 for Mccoy.

Is Mccoy or Rex more popular?

Rex is more popular, ranked #793 compared to Mccoy at #911 in the United States.

What do Mccoy and Rex mean?

Mccoy means "son of Aodh (fire)" (Irish Gaelic origin). Rex means "king" (Latin origin).

Are Mccoy and Rex boy or girl names?

Mccoy is primarily a boy name. Rex is primarily a boy name.