Marcus vs Killian

Baby Name Comparison — 2026

Marcus

Boy #256 Most Popular 2 Syllables

"of Mars, warlike"

Origin: Latin

Roman English German Scandinavian African-American

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Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

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Marcus Rank #256

Killian Rank #370

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

Is Marcus or Killian more popular?

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

What do Marcus and Killian mean?

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

Are Marcus and Killian boy or girl names?

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