Sullivan vs Jett

Baby Name Comparison — 2026

Sullivan

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Boy #161 Most Popular 1 Syllable

"black gemstone; jet"

Origin: English

American Australian English

✓ All Clear

Sullivan Rank #340

Jett Rank #161

Jett is more popular, ranked #161 vs #340 for Sullivan.

Is Sullivan or Jett more popular?

Jett is more popular, ranked #161 compared to Sullivan at #340 in the United States.

What do Sullivan and Jett mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Jett means "black gemstone; jet" (English origin).

Are Sullivan and Jett boy or girl names?

Sullivan is primarily a boy name. Jett is primarily a boy name.