Jeffrey vs Sullivan

Baby Name Comparison — 2026

Jeffrey

Boy #521 Most Popular 3 Syllables

"pledge of peace"

Origin: Germanic

English American French

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Jeffrey Rank #521

Sullivan Rank #340

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

Is Jeffrey or Sullivan more popular?

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

What do Jeffrey and Sullivan mean?

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

Are Jeffrey and Sullivan boy or girl names?

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