Cass vs Cassius

Baby Name Comparison — 2026

Cass

Boy #5,414 Most Popular 1 Syllable

"hollow, vain (from Latin Cassius)"

Origin: Latin

English American Greek

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Boy #568 Most Popular 3 Syllables

"hollow, empty"

Origin: Latin

English American Roman

✓ All Clear

Cass Rank #5,414

Cassius Rank #568

Cassius is more popular, ranked #568 vs #5414 for Cass.

Is Cass or Cassius more popular?

Cassius is more popular, ranked #568 compared to Cass at #5414 in the United States.

What do Cass and Cassius mean?

Cass means "hollow, vain (from Latin Cassius)" (Latin origin). Cassius means "hollow, empty" (Latin origin).

Are Cass and Cassius boy or girl names?

Cass is primarily a boy name. Cassius is primarily a boy name.