Killian vs Kian

Baby Name Comparison — 2026

Killian

Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

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Boy #417 Most Popular 2 Syllables

"ancient, enduring"

Origin: Old Irish

Irish Persian English

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Killian Rank #370

Kian Rank #417

Killian is more popular, ranked #370 vs #417 for Kian.

Is Killian or Kian more popular?

Killian is more popular, ranked #370 compared to Kian at #417 in the United States.

What do Killian and Kian mean?

Killian means "associated with the church" (Irish Gaelic origin). Kian means "ancient, enduring" (Old Irish origin).

Are Killian and Kian boy or girl names?

Killian is primarily a boy name. Kian is primarily a boy name.