Rio vs Duke

Baby Name Comparison — 2026

Rio

Boy #517 Most Popular 2 Syllables

"river"

Origin: Spanish/Portuguese

Spanish Portuguese Brazilian American

✓ All Clear

Boy #710 Most Popular 1 Syllable

"leader, military commander"

Origin: Latin

American English Australian

✓ All Clear

Rio Rank #517

Duke Rank #710

Rio is more popular, ranked #517 vs #710 for Duke.

Is Rio or Duke more popular?

Rio is more popular, ranked #517 compared to Duke at #710 in the United States.

What do Rio and Duke mean?

Rio means "river" (Spanish/Portuguese origin). Duke means "leader, military commander" (Latin origin).

Are Rio and Duke boy or girl names?

Rio is primarily a boy name. Duke is primarily a boy name.