Sullivan vs Marcus

Baby Name Comparison — 2026

Sullivan

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Boy #256 Most Popular 2 Syllables

"of Mars, warlike"

Origin: Latin

Roman English German Scandinavian African-American

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Sullivan Rank #340

Marcus Rank #256

Marcus is more popular, ranked #256 vs #340 for Sullivan.

Is Sullivan or Marcus more popular?

Marcus is more popular, ranked #256 compared to Sullivan at #340 in the United States.

What do Sullivan and Marcus mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Marcus means "of Mars, warlike" (Latin origin).

Are Sullivan and Marcus boy or girl names?

Sullivan is primarily a boy name. Marcus is primarily a boy name.