Ayden vs Killian

Baby Name Comparison — 2026

Ayden

Boy #213 Most Popular 2 Syllables

"little fire"

Origin: Old Irish (Aodhán)

American Irish English

✓ All Clear

Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

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Ayden Rank #213

Killian Rank #370

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

Is Ayden or Killian more popular?

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

What do Ayden and Killian mean?

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

Are Ayden and Killian boy or girl names?

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