Sullivan vs Jeffrey

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 #521 Most Popular 3 Syllables

"pledge of peace"

Origin: Germanic

English American French

✓ All Clear

Sullivan Rank #340

Jeffrey Rank #521

Sullivan is more popular, ranked #340 vs #521 for Jeffrey.

Is Sullivan or Jeffrey more popular?

Sullivan is more popular, ranked #340 compared to Jeffrey at #521 in the United States.

What do Sullivan and Jeffrey mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Jeffrey means "pledge of peace" (Germanic origin).

Are Sullivan and Jeffrey boy or girl names?

Sullivan is primarily a boy name. Jeffrey is primarily a boy name.