Jett vs Sullivan

Baby Name Comparison — 2026

Jett

Boy #161 Most Popular 1 Syllable

"black gemstone; jet"

Origin: English

American Australian English

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Jett Rank #161

Sullivan Rank #340

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

Is Jett or Sullivan more popular?

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

What do Jett and Sullivan mean?

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

Are Jett and Sullivan boy or girl names?

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