Riley vs Sullivan

Baby Name Comparison — 2026

Riley

Boy #229 Most Popular 2 Syllables

"courageous, valiant"

Origin: Irish

Irish English American

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Riley Rank #229

Sullivan Rank #340

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

Is Riley or Sullivan more popular?

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

What do Riley and Sullivan mean?

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

Are Riley and Sullivan boy or girl names?

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