Aithan vs Casyn

Baby Name Comparison — 2026

Aithan

Boy #4,385 Most Popular 2 Syllables

"strong, enduring, firm"

Origin: Hebrew

American Christian English

✓ All Clear

Boy #4,583 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

American Irish English

✓ All Clear

Aithan Rank #4,385

Casyn Rank #4,583

Aithan is more popular, ranked #4385 vs #4583 for Casyn.

Is Aithan or Casyn more popular?

Aithan is more popular, ranked #4385 compared to Casyn at #4583 in the United States.

What do Aithan and Casyn mean?

Aithan means "strong, enduring, firm" (Hebrew origin). Casyn means "vigilant, watchful" (Irish Gaelic origin).

Are Aithan and Casyn boy or girl names?

Aithan is primarily a boy name. Casyn is primarily a boy name.