Killian vs Lionel

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 #561 Most Popular 3 Syllables

"young lion"

Origin: Latin

English French Spanish Italian

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Killian Rank #370

Lionel Rank #561

Killian is more popular, ranked #370 vs #561 for Lionel.

Is Killian or Lionel more popular?

Killian is more popular, ranked #370 compared to Lionel at #561 in the United States.

What do Killian and Lionel mean?

Killian means "associated with the church" (Irish Gaelic origin). Lionel means "young lion" (Latin origin).

Are Killian and Lionel boy or girl names?

Killian is primarily a boy name. Lionel is primarily a boy name.