Sullivan vs Callahan

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 #364 Most Popular 3 Syllables

"lover of churches"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Sullivan Rank #340

Callahan Rank #364

Sullivan is more popular, ranked #340 vs #364 for Callahan.

Is Sullivan or Callahan more popular?

Sullivan is more popular, ranked #340 compared to Callahan at #364 in the United States.

What do Sullivan and Callahan mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Callahan means "lover of churches" (Irish Gaelic origin).

Are Sullivan and Callahan boy or girl names?

Sullivan is primarily a boy name. Callahan is primarily a boy name.