Sullivan vs Ronan

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 #257 Most Popular 2 Syllables

"little seal"

Origin: Old Irish

Irish Scottish Celtic English

✓ All Clear

Sullivan Rank #340

Ronan Rank #257

Ronan is more popular, ranked #257 vs #340 for Sullivan.

Is Sullivan or Ronan more popular?

Ronan is more popular, ranked #257 compared to Sullivan at #340 in the United States.

What do Sullivan and Ronan mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Ronan means "little seal" (Old Irish origin).

Are Sullivan and Ronan boy or girl names?

Sullivan is primarily a boy name. Ronan is primarily a boy name.