Morgan vs Sullivan

Baby Name Comparison — 2026

Morgan

Boy #532 Most Popular 2 Syllables

"sea-born, born of the sea"

Origin: Welsh

Welsh English American Irish

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Morgan Rank #532

Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #532 for Morgan.

Is Morgan or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Morgan at #532 in the United States.

What do Morgan and Sullivan mean?

Morgan means "sea-born, born of the sea" (Welsh origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Morgan and Sullivan boy or girl names?

Morgan is primarily a boy name. Sullivan is primarily a boy name.