Kylan vs Sullivan

Baby Name Comparison — 2026

Kylan

Boy #533 Most Popular 2 Syllables

"narrow strait"

Origin: Scottish Gaelic

American Irish English

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Kylan Rank #533

Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #533 for Kylan.

Is Kylan or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Kylan at #533 in the United States.

What do Kylan and Sullivan mean?

Kylan means "narrow strait" (Scottish Gaelic origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Kylan and Sullivan boy or girl names?

Kylan is primarily a boy name. Sullivan is primarily a boy name.