Sullivan vs Sean

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 #437 Most Popular 1 Syllable

"God is gracious"

Origin: Hebrew via Irish

Irish English American Scottish

✓ All Clear

Sullivan Rank #340

Sean Rank #437

Sullivan is more popular, ranked #340 vs #437 for Sean.

Is Sullivan or Sean more popular?

Sullivan is more popular, ranked #340 compared to Sean at #437 in the United States.

What do Sullivan and Sean mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Sean means "God is gracious" (Hebrew via Irish origin).

Are Sullivan and Sean boy or girl names?

Sullivan is primarily a boy name. Sean is primarily a boy name.