Sullivan vs Callister

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 #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Sullivan Rank #340

Callister Rank #43,579

Sullivan is more popular, ranked #340 vs #43579 for Callister.

Is Sullivan or Callister more popular?

Sullivan is more popular, ranked #340 compared to Callister at #43579 in the United States.

What do Sullivan and Callister mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Callister means "defender of men" (Greek via Gaelic origin).

Are Sullivan and Callister boy or girl names?

Sullivan is primarily a boy name. Callister is primarily a boy name.