Sullivan vs Koa

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 #292 Most Popular 2 Syllables

"warrior, brave one"

Origin: Hawaiian

Hawaiian American Pacific Islander

✓ All Clear

Sullivan Rank #340

Koa Rank #292

Koa is more popular, ranked #292 vs #340 for Sullivan.

Is Sullivan or Koa more popular?

Koa is more popular, ranked #292 compared to Sullivan at #340 in the United States.

What do Sullivan and Koa mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Koa means "warrior, brave one" (Hawaiian origin).

Are Sullivan and Koa boy or girl names?

Sullivan is primarily a boy name. Koa is primarily a boy name.