Sullivan vs Riley

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 #229 Most Popular 2 Syllables

"courageous, valiant"

Origin: Irish

Irish English American

✓ All Clear

Sullivan Rank #340

Riley Rank #229

Riley is more popular, ranked #229 vs #340 for Sullivan.

Is Sullivan or Riley more popular?

Riley is more popular, ranked #229 compared to Sullivan at #340 in the United States.

What do Sullivan and Riley mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Riley means "courageous, valiant" (Irish origin).

Are Sullivan and Riley boy or girl names?

Sullivan is primarily a boy name. Riley is primarily a boy name.