Mack vs Cassius

Baby Name Comparison — 2026

Mack

Boy #499 Most Popular 1 Syllable

"son of"

Origin: Scottish Gaelic

Scottish Irish American

✓ All Clear

Boy #568 Most Popular 3 Syllables

"hollow, empty"

Origin: Latin

English American Roman

✓ All Clear

Mack Rank #499

Cassius Rank #568

Mack is more popular, ranked #499 vs #568 for Cassius.

Is Mack or Cassius more popular?

Mack is more popular, ranked #499 compared to Cassius at #568 in the United States.

What do Mack and Cassius mean?

Mack means "son of" (Scottish Gaelic origin). Cassius means "hollow, empty" (Latin origin).

Are Mack and Cassius boy or girl names?

Mack is primarily a boy name. Cassius is primarily a boy name.