Mark vs Sullivan

Baby Name Comparison — 2026

Mark

Boy #246 Most Popular 1 Syllable

"of Mars, warlike"

Origin: Latin

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Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

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Mark Rank #246

Sullivan Rank #340

Mark is more popular, ranked #246 vs #340 for Sullivan.

Is Mark or Sullivan more popular?

Mark is more popular, ranked #246 compared to Sullivan at #340 in the United States.

What do Mark and Sullivan mean?

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

Are Mark and Sullivan boy or girl names?

Mark is primarily a boy name. Sullivan is primarily a boy name.