Sullivan vs Leon

Baby Name Comparison — 2026

Sullivan

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

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Boy #141 Most Popular 2 Syllables

"lion"

Origin: Greek

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Sullivan Rank #340

Leon Rank #141

Leon is more popular, ranked #141 vs #340 for Sullivan.

Is Sullivan or Leon more popular?

Leon is more popular, ranked #141 compared to Sullivan at #340 in the United States.

What do Sullivan and Leon mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Leon means "lion" (Greek origin).

Are Sullivan and Leon boy or girl names?

Sullivan is primarily a boy name. Leon is primarily a boy name.