Cassius vs Callister

Baby Name Comparison — 2026

Cassius

Boy #568 Most Popular 3 Syllables

"hollow, empty"

Origin: Latin

English American Roman

✓ All Clear

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Cassius Rank #568

Callister Rank #43,579

Cassius is more popular, ranked #568 vs #43579 for Callister.

Is Cassius or Callister more popular?

Cassius is more popular, ranked #568 compared to Callister at #43579 in the United States.

What do Cassius and Callister mean?

Cassius means "hollow, empty" (Latin origin). Callister means "defender of men" (Greek via Gaelic origin).

Are Cassius and Callister boy or girl names?

Cassius is primarily a boy name. Callister is primarily a boy name.