Colby vs Rio

Baby Name Comparison — 2026

Colby

Boy #582 Most Popular 2 Syllables

"dark man's settlement, coal-black farm"

Origin: Old Norse

English American Scandinavian

✓ All Clear

Boy #517 Most Popular 2 Syllables

"river"

Origin: Spanish/Portuguese

Spanish Portuguese Brazilian American

✓ All Clear

Colby Rank #582

Rio Rank #517

Rio is more popular, ranked #517 vs #582 for Colby.

Is Colby or Rio more popular?

Rio is more popular, ranked #517 compared to Colby at #582 in the United States.

What do Colby and Rio mean?

Colby means "dark man's settlement, coal-black farm" (Old Norse origin). Rio means "river" (Spanish/Portuguese origin).

Are Colby and Rio boy or girl names?

Colby is primarily a boy name. Rio is primarily a boy name.