Kieran vs Marcus

Baby Name Comparison — 2026

Kieran

Boy #441 Most Popular 2 Syllables

"little dark one"

Origin: Irish Gaelic (ciar + -án)

Irish Scottish English

✓ All Clear

Boy #256 Most Popular 2 Syllables

"of Mars, warlike"

Origin: Latin

Roman English German Scandinavian African-American

✓ All Clear

Kieran Rank #441

Marcus Rank #256

Marcus is more popular, ranked #256 vs #441 for Kieran.

Is Kieran or Marcus more popular?

Marcus is more popular, ranked #256 compared to Kieran at #441 in the United States.

What do Kieran and Marcus mean?

Kieran means "little dark one" (Irish Gaelic (ciar + -án) origin). Marcus means "of Mars, warlike" (Latin origin).

Are Kieran and Marcus boy or girl names?

Kieran is primarily a boy name. Marcus is primarily a boy name.