Kaylan vs Casyn

Baby Name Comparison — 2026

Kaylan

Boy #4,545 Most Popular 2 Syllables

"slender, narrow one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Boy #4,583 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

American Irish English

✓ All Clear

Kaylan Rank #4,545

Casyn Rank #4,583

Kaylan is more popular, ranked #4545 vs #4583 for Casyn.

Is Kaylan or Casyn more popular?

Kaylan is more popular, ranked #4545 compared to Casyn at #4583 in the United States.

What do Kaylan and Casyn mean?

Kaylan means "slender, narrow one" (Irish Gaelic origin). Casyn means "vigilant, watchful" (Irish Gaelic origin).

Are Kaylan and Casyn boy or girl names?

Kaylan is primarily a boy name. Casyn is primarily a boy name.