Killian vs Ayden

Baby Name Comparison — 2026

Killian

Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

✓ All Clear

Boy #213 Most Popular 2 Syllables

"little fire"

Origin: Old Irish (Aodhán)

American Irish English

✓ All Clear

Killian Rank #370

Ayden Rank #213

Ayden is more popular, ranked #213 vs #370 for Killian.

Is Killian or Ayden more popular?

Ayden is more popular, ranked #213 compared to Killian at #370 in the United States.

What do Killian and Ayden mean?

Killian means "associated with the church" (Irish Gaelic origin). Ayden means "little fire" (Old Irish (Aodhán) origin).

Are Killian and Ayden boy or girl names?

Killian is primarily a boy name. Ayden is primarily a boy name.