Mack vs Lewis

Baby Name Comparison — 2026

Mack

Boy #499 Most Popular 1 Syllable

"son of"

Origin: Scottish Gaelic

Scottish Irish American

✓ All Clear

Boy #435 Most Popular 2 Syllables

"famous warrior"

Origin: Germanic via French

English Welsh French American

✓ All Clear

Mack Rank #499

Lewis Rank #435

Lewis is more popular, ranked #435 vs #499 for Mack.

Is Mack or Lewis more popular?

Lewis is more popular, ranked #435 compared to Mack at #499 in the United States.

What do Mack and Lewis mean?

Mack means "son of" (Scottish Gaelic origin). Lewis means "famous warrior" (Germanic via French origin).

Are Mack and Lewis boy or girl names?

Mack is primarily a boy name. Lewis is primarily a boy name.