Rio vs Mack

Baby Name Comparison — 2026

Rio

Boy #517 Most Popular 2 Syllables

"river"

Origin: Spanish/Portuguese

Spanish Portuguese Brazilian American

✓ All Clear

Boy #499 Most Popular 1 Syllable

"son of"

Origin: Scottish Gaelic

Scottish Irish American

✓ All Clear

Rio Rank #517

Mack Rank #499

Mack is more popular, ranked #499 vs #517 for Rio.

Is Rio or Mack more popular?

Mack is more popular, ranked #499 compared to Rio at #517 in the United States.

What do Rio and Mack mean?

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

Are Rio and Mack boy or girl names?

Rio is primarily a boy name. Mack is primarily a boy name.