Julius vs Sullivan

Baby Name Comparison — 2026

Julius

Boy #390 Most Popular 3 Syllables

"of the Julian clan, youthful"

Origin: Latin

Roman European American Scandinavian

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Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Julius Rank #390

Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #390 for Julius.

Is Julius or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Julius at #390 in the United States.

What do Julius and Sullivan mean?

Julius means "of the Julian clan, youthful" (Latin origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Julius and Sullivan boy or girl names?

Julius is primarily a boy name. Sullivan is primarily a boy name.