Killian vs Mark

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 #246 Most Popular 1 Syllable

"of Mars, warlike"

Origin: Latin

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Killian Rank #370

Mark Rank #246

Mark is more popular, ranked #246 vs #370 for Killian.

Is Killian or Mark more popular?

Mark is more popular, ranked #246 compared to Killian at #370 in the United States.

What do Killian and Mark mean?

Killian means "associated with the church" (Irish Gaelic origin). Mark means "of Mars, warlike" (Latin origin).

Are Killian and Mark boy or girl names?

Killian is primarily a boy name. Mark is primarily a boy name.