Cassius vs Colby

Baby Name Comparison — 2026

Cassius

Boy #568 Most Popular 3 Syllables

"hollow, empty"

Origin: Latin

English American Roman

✓ All Clear

Boy #582 Most Popular 2 Syllables

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

Origin: Old Norse

English American Scandinavian

✓ All Clear

Cassius Rank #568

Colby Rank #582

Cassius is more popular, ranked #568 vs #582 for Colby.

Is Cassius or Colby more popular?

Cassius is more popular, ranked #568 compared to Colby at #582 in the United States.

What do Cassius and Colby mean?

Cassius means "hollow, empty" (Latin origin). Colby means "dark man's settlement, coal-black farm" (Old Norse origin).

Are Cassius and Colby boy or girl names?

Cassius is primarily a boy name. Colby is primarily a boy name.