Mack vs Onyx

Baby Name Comparison — 2026

Mack

Boy #499 Most Popular 1 Syllable

"son of"

Origin: Scottish Gaelic

Scottish Irish American

✓ All Clear

Boy #359 Most Popular 2 Syllables

"black gemstone"

Origin: Greek (onyx)

American

✓ All Clear

Mack Rank #499

Onyx Rank #359

Onyx is more popular, ranked #359 vs #499 for Mack.

Is Mack or Onyx more popular?

Onyx is more popular, ranked #359 compared to Mack at #499 in the United States.

What do Mack and Onyx mean?

Mack means "son of" (Scottish Gaelic origin). Onyx means "black gemstone" (Greek (onyx) origin).

Are Mack and Onyx boy or girl names?

Mack is primarily a boy name. Onyx is primarily a boy name.