Killian vs Marcus

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 #256 Most Popular 2 Syllables

"of Mars, warlike"

Origin: Latin

Roman English German Scandinavian African-American

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Killian Rank #370

Marcus Rank #256

Marcus is more popular, ranked #256 vs #370 for Killian.

Is Killian or Marcus more popular?

Marcus is more popular, ranked #256 compared to Killian at #370 in the United States.

What do Killian and Marcus mean?

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

Are Killian and Marcus boy or girl names?

Killian is primarily a boy name. Marcus is primarily a boy name.