Kian vs Sullivan

Baby Name Comparison — 2026

Kian

Boy #417 Most Popular 2 Syllables

"ancient, enduring"

Origin: Old Irish

Irish Persian English

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Kian Rank #417

Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #417 for Kian.

Is Kian or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Kian at #417 in the United States.

What do Kian and Sullivan mean?

Kian means "ancient, enduring" (Old Irish origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Kian and Sullivan boy or girl names?

Kian is primarily a boy name. Sullivan is primarily a boy name.