Killian vs Leonidas

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 #509 Most Popular 4 Syllables

"son of the lion"

Origin: Greek

Greek American Spanish European

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Killian Rank #370

Leonidas Rank #509

Killian is more popular, ranked #370 vs #509 for Leonidas.

Is Killian or Leonidas more popular?

Killian is more popular, ranked #370 compared to Leonidas at #509 in the United States.

What do Killian and Leonidas mean?

Killian means "associated with the church" (Irish Gaelic origin). Leonidas means "son of the lion" (Greek origin).

Are Killian and Leonidas boy or girl names?

Killian is primarily a boy name. Leonidas is primarily a boy name.