Sullivan vs Lewis

Baby Name Comparison — 2026

Sullivan

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Boy #435 Most Popular 2 Syllables

"famous warrior"

Origin: Germanic via French

English Welsh French American

✓ All Clear

Sullivan Rank #340

Lewis Rank #435

Sullivan is more popular, ranked #340 vs #435 for Lewis.

Is Sullivan or Lewis more popular?

Sullivan is more popular, ranked #340 compared to Lewis at #435 in the United States.

What do Sullivan and Lewis mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Lewis means "famous warrior" (Germanic via French origin).

Are Sullivan and Lewis boy or girl names?

Sullivan is primarily a boy name. Lewis is primarily a boy name.