Maddox vs Killian

Baby Name Comparison — 2026

Maddox

Boy #215 Most Popular 2 Syllables

"son of Madoc"

Origin: Welsh

American Welsh English

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Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

✓ All Clear

Maddox Rank #215

Killian Rank #370

Maddox is more popular, ranked #215 vs #370 for Killian.

Is Maddox or Killian more popular?

Maddox is more popular, ranked #215 compared to Killian at #370 in the United States.

What do Maddox and Killian mean?

Maddox means "son of Madoc" (Welsh origin). Killian means "associated with the church" (Irish Gaelic origin).

Are Maddox and Killian boy or girl names?

Maddox is primarily a boy name. Killian is primarily a boy name.