Sullivan vs Brian

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 #301 Most Popular 2 Syllables

"noble, high"

Origin: Celtic

Irish English American Scottish

✓ All Clear

Sullivan Rank #340

Brian Rank #301

Brian is more popular, ranked #301 vs #340 for Sullivan.

Is Sullivan or Brian more popular?

Brian is more popular, ranked #301 compared to Sullivan at #340 in the United States.

What do Sullivan and Brian mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Brian means "noble, high" (Celtic origin).

Are Sullivan and Brian boy or girl names?

Sullivan is primarily a boy name. Brian is primarily a boy name.