Kayson vs Sullivan

Baby Name Comparison — 2026

Kayson

Boy #291 Most Popular 2 Syllables

"rejoice, healer"

Origin: American/Persian

American

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Kayson Rank #291

Sullivan Rank #340

Kayson is more popular, ranked #291 vs #340 for Sullivan.

Is Kayson or Sullivan more popular?

Kayson is more popular, ranked #291 compared to Sullivan at #340 in the United States.

What do Kayson and Sullivan mean?

Kayson means "rejoice, healer" (American/Persian origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Kayson and Sullivan boy or girl names?

Kayson is primarily a boy name. Sullivan is primarily a boy name.