Jay vs Sullivan

Baby Name Comparison — 2026

Jay

Boy #397 Most Popular 1 Syllable

"to rejoice, joyful"

Origin: Latin (Gaius)

American English South Asian Universal

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Jay Rank #397

Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #397 for Jay.

Is Jay or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Jay at #397 in the United States.

What do Jay and Sullivan mean?

Jay means "to rejoice, joyful" (Latin (Gaius) origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Jay and Sullivan boy or girl names?

Jay is primarily a boy name. Sullivan is primarily a boy name.