Mac vs Rio

Baby Name Comparison — 2026

Mac

Boy #696 Most Popular 1 Syllable

"son of"

Origin: Scottish Gaelic

Scottish Irish American

✓ All Clear

Boy #517 Most Popular 2 Syllables

"river"

Origin: Spanish/Portuguese

Spanish Portuguese Brazilian American

✓ All Clear

Mac Rank #696

Rio Rank #517

Rio is more popular, ranked #517 vs #696 for Mac.

Is Mac or Rio more popular?

Rio is more popular, ranked #517 compared to Mac at #696 in the United States.

What do Mac and Rio mean?

Mac means "son of" (Scottish Gaelic origin). Rio means "river" (Spanish/Portuguese origin).

Are Mac and Rio boy or girl names?

Mac is primarily a boy name. Rio is primarily a boy name.