Lucian vs Killian

Baby Name Comparison — 2026

Lucian

Boy #486 Most Popular 3 Syllables

"light, illumination"

Origin: Latin

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Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

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Lucian Rank #486

Killian Rank #370

Killian is more popular, ranked #370 vs #486 for Lucian.

Is Lucian or Killian more popular?

Killian is more popular, ranked #370 compared to Lucian at #486 in the United States.

What do Lucian and Killian mean?

Lucian means "light, illumination" (Latin origin). Killian means "associated with the church" (Irish Gaelic origin).

Are Lucian and Killian boy or girl names?

Lucian is primarily a boy name. Killian is primarily a boy name.