Maddox vs Sullivan

Baby Name Comparison — 2026

Maddox

Boy #215 Most Popular 2 Syllables

"son of Madoc"

Origin: Welsh

American Welsh English

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Maddox Rank #215

Sullivan Rank #340

Maddox is more popular, ranked #215 vs #340 for Sullivan.

Is Maddox or Sullivan more popular?

Maddox is more popular, ranked #215 compared to Sullivan at #340 in the United States.

What do Maddox and Sullivan mean?

Maddox means "son of Madoc" (Welsh origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Maddox and Sullivan boy or girl names?

Maddox is primarily a boy name. Sullivan is primarily a boy name.