Onix vs Cass

Baby Name Comparison — 2026

Onix

Boy #5,293 Most Popular 2 Syllables

"black banded gemstone"

Origin: Greek

American Latin American Spanish

✓ All Clear

Boy #5,414 Most Popular 1 Syllable

"hollow, vain (from Latin Cassius)"

Origin: Latin

English American Greek

✓ All Clear

Onix Rank #5,293

Cass Rank #5,414

Onix is more popular, ranked #5293 vs #5414 for Cass.

Is Onix or Cass more popular?

Onix is more popular, ranked #5293 compared to Cass at #5414 in the United States.

What do Onix and Cass mean?

Onix means "black banded gemstone" (Greek origin). Cass means "hollow, vain (from Latin Cassius)" (Latin origin).

Are Onix and Cass boy or girl names?

Onix is primarily a boy name. Cass is primarily a boy name.